SCIENTIFIC ABSTRACT HORNA, J. - HORNET, N.N.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000618130002-0
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: September 24, 2001
• Sequence Number: 2
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

83397
Z/037/60/000/o05/053/056
E192/E382
Remarks on the Problem of the Phase Modulation Linearity in
a Travelling-wave Tube (Permactron)
these are characterised by transf&r coefficlents and d"
i'll I
and reflection coefficients s, and s" . Multiple reflections
1 1
take place between the two discontinuities; this effect is
known as "echo in long lines". This effect can be analysed as LX
-follows (Fig. 1); a sinusoidal signal Of U321t amplitude
propagates along the input line; at the transformation quadripole
the signal decreases by exp(yi, ti and a portion of this
signal propagates in the forward direction, while a fraction of
it is reflected towards the source. In the same way, the signal
propagates in the second line and in the terminating line. In
general, it is necessary to consider multiple reflection of the
signal in the lines and the overall transfer function of the
system can be expressed as:
Card 2/6

83397
Z/037/60/000/005/053/056
j19XE;8
Remarks on the Problem of t e a 02MOdulation Linearity in
a Travelling-wave Tube (Permactron)
G' = 0110'21 exp(Y lel + Y2' t2' + Y3 e3) Ll +12B III oxx) (Yillal + Y.1.e #)I
2 2
+(s'sII exp (Yllell + Y 2
2 1 #121)) +
2 2 2
In general., it is sufficient to consider only the first two terms
of this expression, so that Eq. (1) can be written as Eq. (2).
This can be further written as Eq. (5). The relationship between
the electron velocity and the acceleriting voltage in a
travelling-wave tube is given by:
;-e_
v 2 - U = 5-94 0 10-5 fir [m/s; V] (7)
m
The phase shift of a signal during its passage through the helix
is expressed by;
6

83397
Z/037/60/000/005/053/056
E192/E382
Remarks on the Problem of the Phase Modulation Linearity in
a Travelling-wave Tube (Permactron)
W 6
(p 12 = q, f I = - ~,, = 1. 684 0 10- e U (8)
2
where 4, is the axial length of the helix. The phase shift
can also be defined by:
2WH
2
(9)
where N = t2/%v is the electrical length of the tube
expressed in terms of the wavelength in the helix. If' the
accelerating voltage changes by Z U in the vicinity of the
optimum voltage X0 the phase changes by 0%9 these changes
are related by:
Alp N
- = 7r -
6 U U
Card4/6
(12)

83397
Z/037/60/000/005/053/056
Remarks on the Problem of the Phals'22480auftation Linearity in
a Travelling-wave Tube (Permactron)
This expression gives the slope of the phase-modulation
characteristic. Now Eq. (5) can be rewritten as Eq. (14)
by introducing the notation defined by Eqs. (13a) and
(13b). Eq. (14) expresses the transfer function as-it sum
of two vectors (Fig. 2). The first vector A represents
the transfer function of an ideal tube without discontinuities;
vector B has a smaller amplitude than that of A a-ad
introduces a wavelike distortion into the modulation
characteristic of the tube (Fig- 3a). The vector S deter-
mines the magnitude of the characteristic norilinearity and
it is almost independent of the accelerating voltage. The
phase characteristic can now be expressed by Sq. (16). The
formulae were checked experimentally by means of the equip-
ment shown in the block diagram of Fig. 4. In this the
travelling-wave tube operated at frequencies from 4.4 to 5.0 Gc/s.
The accelerating voltage contained a modulating component
ranging from 2 to 5 V at 2 Me/s. The output-signal therefore
had a very low modulation index. The results obtained from
the experimental investigation are shown on ttte plat,:, of p.516c.
Card 5/6

83397
Z/037/6o/ooO/005/O53/o56
E192/E382
Remarks on the Problem of the Phase Modulation Linearity in
a Travelling-wave Tube (Permactron) LX
The experiment is in good agreement with the formulae. The
author thanks Jan Vrba for encouragement and fruitful
di-s6ussions and Hana Minarikova for help in the measurements.
There are 9 figures and 5 references: 3 English, Ifierman
and 1 Czech.
ASSOCIATION: V~zkumn~ U'stav pro sd9lovaci techniku
A.S. Popova, Praha (A.S. Popov Telecommunications
Research Institute, Prague)
Card 6/6

MWMEX., Jan., iur.. j HORN&,, Jan,, luz.
Second international conference on centimetre wave coamunications"a
Slaboproudy obzor 23 nos9*2546-547 3 162,

C -rr,
microw-ave wIlth qiarter-wava bor-46; deisLgr- of
avegulde I" tE:rS from resonance pln3~ SlaboprOudY ON-Or
w
24 no.12,729 D'6,,A.

Acassiou NR: APOP-939o
JGU~ (Gorna, Y.) (rn5inser)
Z/0039/a/023/004/OIB6/03.92
TITIZ: Prciparties of the CzechWE1 output travelinG imw* Woe
SUM=: Slaboproudy obzor, v# 25, no. 4, 1964, 26-192
TOPIC TAGS: - trayelirZ wave tae, TWT, reflectim., Internal refliectioa,
maplificatim., amplification stabilitj, relay link, intrvqtW 3AWc, intrastwe
~relay, amplifier, 31SEI traveling wave tube, vacuun tube
AMTRACT: The Czcch-made 32SE1 traveling-wave tube denigned at VLr&V (Scienti- i
fic Inztitute for Ca=uaications Technolory) for use in intra-state radio re3ay
links irithin the 4-35 to, 5.0 Ge/sce range is described. The ch=cter-jst!.c,3
given inclide: accelerating potential -- 1650 v, amplification per pJ';.& of
the helix -- 2 db, and axial lenc,,th of helix -- 15 cm. Amplification vaAes
2 db in tha 4-35 to 5-3 Ge range vhen the excitatica is 5 w and stanein,- inive
rcv' tio in the latest models-is better than 1-5 in this rw'Ze- Nid-b=& �aase
modulatl.on coefficient is 0.0336 ra /v, the input si5rwJ. phase 'beiz)Z easily
modulated by the voltASc applied to the helix. The c. Iri/-196i =a a. 35/101
tubes have lives of 3050 oncl 4620 hours, respectively. $Zmtemstia specimen

ACCIMIOft NR: 40P-9390
mcasua-emonts wera used as the bnbin- -,,inn special features encountered in in-
troducing the output traveling wave tube into Intm-state relay 3AnUn are de-
scribed. Orig. art has : 13 graphics.
ASSOCIATICET: VyzIammy ustav pro adelovaci technika A. S. Popava, Pzaba
(Scient=e Institute of U=uaicaticas TecbnoloMr)
SWa=: 28SeP63 DAM ACQ: - OlMaVO~ MCL: 00
Sim CCDE: EC NO SOV M: 000 022
Card 2/2

HORNA, Jan, Inz.
- 4. - - ~' -
Properties of an input traveling wave tube in cimbined transmission
in a radio relay system, Sbor vak elektrotech 4i54-57 164.
Noise factor of the 31 SE 1 output traveling wave tube. Ibid.:
58-64
1. Research Institute of Teleem. nunication Enklymering, Prague.

0.
Iew-frequency elootronic voltmeter Vith 6802 oleatron tubalf. p.19.
(SUWVACI TECHNIKAs VoL 2# no* It 4ane 1954j, Praha)
SO: Monthly List of East Swopean Aecessiont(ELIAL)t LC, Vol. 4,,
No. 11, Nov. 19559 Unol.

HORNA~ 0.
Decade resistances,, p. 89, SDE1.0VACI TEMIKk (Kinisterstva,
strojirenstvi) Prahav Vol. 2, No. 3P Mar. 1954
SOURCE: Zast European Accessions List (EEAL) Library of Congress,
Vol. 4, No. 12, December 19515

HOMAy 0 a
Tesla 1225-5130,14 amplifiers, p. 94.. SM07ACI TEC.41NIKA (Pftisterstvo
strojirenstvi) Praha, Vol. 2, No. 3, Mar. l9r4
SOM CE: East L~impean Accessions Lir-i-, (EEAL) Libi-cry of Cor-.Cress,
Vol. 43 No. 12, Deceirber 1QI~t5

ii,M ~-i A, 0.
Strnin -bu&e brid--~o H3-5- -- 'S.
(FLECTIZ-ITECIIINICKY uBZ'jH, vol. 44, iio. 2, Feb. 195", Praha)
SO: I~Ionthly List of East, Europoan Lr,, "In'l. 4, No. 1P.,
41 ov. 1955, Uncl.

HORNA, 0.
"Use of the 6CC1 electron tube." p. 212
3DMOVACI TECHNIKA. Praha) Czechoslovaida, Vol- 3, No. 7, Ju:11Y, 1955
Monthly List of &ast European Accessions (S'11), LC, Vol, 8, ho. 9, Septemb-ar., 1959
Unclas

HORNA.. 0.
HORUAp 0. Quality of aMlifiers for use in homes. po 16
Vol. 4 no 1 Jan. 1956
SDEWVICI IF36"
TECHHOLOGrL
Praha$ Czechoslova)da
SO: East European Accession Vol* 6# no, 2. 1957

HORNA., 0.
HORMA# 0. Additive mixer. p. 82
The Tesia 621A Opera radio set. p. 91
V61. 4 no. 3 Yar. 1956
SDELORCI TECHINIU
TEMOLOGY
Praha, Czechoslovalda
SO: East Eur~;pean Accession Vol. 6,, no, 2. 1957

Hornap 0*
Resistance deflectometers. P-176. ELEKTROTLCHNICKY OBZOR.
(ftnisterstvo strojirenstvi a Ministerstvo paliv a anergetiky)
Prahas Vol*45P no.4. Apr* 1956
Source: EM LC Vol-5. No-10 Oct* 7.956

I
ITOPIIA, 0.
A quality amplifier tor radio receivers. p.:1~9.
(Sdelovaci Techinika, Vol. 5, No. r, May 19C7, Praha, Czechoslovakia)
SOi Monthly List of East Europoan Accessions (EEAL) LC. Vol. 6, No. 9, Sept. 1915T. Uncl.

140 R'L
The ferristor, a new mcgnetic amplifier.
P. 310 (Sdelovaci Technika. Vol. 5-, nc . 10, Oct. 39,57 Czechoslovr!Y~p)
Monthly Index of East European Accessions (EFkl) U. Vol. 70 no. 2,
February 195B

HORNA, 0.
A direct-current electronic idllivoltmeter.
P. 14. (3DELOVACI TECHNIKA) (Praha, Czechoslovakia) Vol. 6. no. 1, Jan. 1958
SO: Monthly Index of East European Accession (EEAI) LC Vol. 7, 'No. 5. 19~8

HORNA, 0.
TEMOLOGY
Periodicals SDEWVACI TECHNIKA. Vol. 6, no. 11, Nov. 1958,
HORNA, 0. A laborator7-power amplifier. P. 412.
Monthly List of East Europun Accession (KEAI) W-: Vol. 8,, no. 3
March 1959 Unclass.

I I rz Ttl," A 0.
TECH"OL01Y
"I
pcricdicals: SDL~~,.MCT TEUN'ThA Vol.. 0, rio. 9, -Sq,t. 191)'H
110M~A, C. Interesting. designs of radio receimrs. Tr. fror.,. the Gc-m,.Qn
P. 3 2 5 -
'-'onthly Ust of Ract Kuroncin Acccsisions (11,TAII, L(- Vol. 'I, r~N.
' 9,
. r 1`59" tjllcl~-ss-
,

HORMA, 0.
"Simple measuring instruments." p. 267.
t~ F. "The modified Wien bridge," p, 270.
SDEWVACI TECHIMA. (MISTERSTV0 STROJIRENSTVI). Praha Cz c oslova a, Vol. T,
e -h ki
no. 7p July 195~.
Monthly List of East European Accessions (EEAI)o LCI V:)I, 8, No. 9, Septenber 1959.
Uncl.

KLABOCH, L., ins.; DUFEK, Jaroarlav,, ins.; HAJU~ E., doe.,, ins.; REZRICEEK,
L, inzi,- ROD,T., ins.; MA,,J.,, ins.; MATOUSM, B., inz.1
KOUSALi P., in'z.;- JMNDA, I.; CAISj 0., inz,;' NOVAK, S.; URBAN, 3.;
HANKE, M.- , ins.; VOKMA,'V., ins.; FOGL,, J., ins.; HROMIR, M.~'
ins.; BOLIN, J., prl)fsp ins.; SLEZAK, A., inz,j' TIMBACH, Z., ins.;
DREMR, J., inz.;_!!1,RNA,,,O.,Iins., XUPEC, ~., ins.
Discussion on tensio4try. Zpravodaj VZLU no.207-46, 69-80
v62.
1. Vyzkumny a zkusebni letecky ustm (for Dufek, Remnieek,
Manda, Coo, Drexler, and Kupeo) - * 2o- Statni vyzkumny usto topelfin
teohniky (for,Klaboch, R6d, Dr&,, Matouse1c, 1`itlbaoh).,4 3. Ceske
vysoke uceni teohnioke (for 11aJok, Solin). 4.. Untav pro vyakam
motorovych vozidel (for Hanke, Vokurka,.Fogl, Hromir). 5, Vyzkunny
ustav matematitkych stroju (for Horna5. 6. Moravan, n.p.,
Otrok.ovice (for Kounal).- 41 mi~rotmchna, Holesovice (ror Novak).
8 Z%vody V.I.Lenina (for Urban),' 9'- Svermovy mavody, Vyzkumny
u;tav (for Slez~k)i f

HOWIA, Otakar A., inz., C3c.
. . 1. : j - - - '- '- r-
Simple source of constant current. Sdol tech 11 no.9:352-353
S 163.

9(2) 03ECH/14-59-11--14,/64
AUTHOR: Horna, Otakar A., Engineer
TITLE: Basic Relations for Calculating Transistorized Cir-
cuits
PERIODICAL: Sd4lovacf technika, 1959, Nr 11, pp 418-420
ABSTRACT: In order to facilitate the task of those working with
transistor circuits, the author gives in this art-
icle some of the most important formulae and rela-
tions necessary for the calculation of transistor
circuits. He first deals with hybrid parameters.
The qualities of transistors are determined to a
full extent only by the so-called characteristics,
more particularly by the collector charecteristic
and transmission characteris'.j-u (which ia the inter-
dependence b6tween the collector current and the cur-
rent or the voltage of the basis). A13 far as the
transistor merely amplifies the voltage, it can be
considered as an active linear quadripole. The feat-
ures of this fourpole may be characterized by 4
Card 1/5 parameters, indicating the relation between the in-
~'X

OZECII/14-59-11-14/64
Basic Relations for Calculating Transistorized Circuits
put voltage vI and the current 1 1 and the output
voltage V,tirespectively the =.-rent i (Fig 1).
These rel ons can be expressed in thi following
hybrid formulae: v1 = hili 1 + h12V2; '2 = h2l'l
h22v2; -where hmn are the so-called hybrid parameters
having the following significance: h input im-
pedance of the transistor with a shorl;IcIrcuit out-
put; h = factor of the voltage feedback at a no-
load Q&t; h 0
21 = current amplifying factor with a
short circuit output; hJ2 = output admittance
with no-load input. Certai producers character-
ize the transistors with values valid for either a
connection with the common basis or with the common
emitter (Fig 2). Simplified relationa for the cal-
culation of the hybrid parameters from these valuea
are summarized in Table 4. The indices b, e, k, in-
dicate the kind of connection for which the para-
Card 2/5 meters are given. Besides the common 3uropean mark

CZECII/14-59-11-14/64
Basic Relations for Calculating Transistorized Circuits
ing of the h parameters (indices given in Figures),
the marking with the indices i, r, f, o used by some
American sources is also given. The formulae in
Table 4 are valid if the resistance of the basis r
is much lower than the resistance of the emitter r.,
if the resistance of the collector r is higher
than r and if the current amplifying factor is much
greatef than 1. Further, the author describes how
to use the hybrid parameters. Table 4 shows that
h - parameters for a connection with a. common col-
1~ctor are as follows: h llk :~hlle ; h 12k ~_ I ;
h `z: 2le h22k ~-_h A schematic diagram of
21K ' _h 22e'
the transistor as a linear quadripole with the load-
ing resistance Rj~, tile source of exciting voltage e9
and the inner resistance R is shown in Fig 7. The
features of the whole circfiit can be expressed in
the formulae Nrs 3-0 With formulae Xr;a 4-7 and the
Card 3/5 values in Table 4 tiLe input impedance Z :L can be. V'_

CZECH/14-59-11-14/64
Basic Relations for Calculating Transistorized Circuits
culated: r
h h2lk ' RL rk * !RL
Z =h + 12k* ~R
i llk 1 - h R 77 _IR, L
22k L k L
For the adjustment of the working point, the author
writest so-called stabilization connections are
used. The various kinds of stabilization circUitB
with linear resistances are illustrated in Fig 6.
These are essentially circuits through which such a
strong negative feedback is introduced for the DC
current that the transistor collector current I is
above all determined by Ithe magnitude of the retiet-
ance R 1and R4 and is to a certain extent, independ-
ent on the parameters of the tra. nsistor. The degree
of the inti-oduced DC nagative feedbao-k is called
the stabilization factor 3 . The Mo3le S e is smaller
than 1, the less I s dep8ndent on -the changes of
the parameters of ~hei transistor. Far a connection
Card 4/5 with the common emitter the definition is given in

CZECH/14-59-11-14/64
Basic Relations for Calculating Transistorized Circuits
Fig 5, formula Nr 21 and Refs 4 azid 5. Concluding,
the author gives a practical example of calculating
the stabilization c~'rcuit. There are 7 circuit dia-
grams and 5 references, 3 of which are Czech, 1
Austrim and 1 US. X
Card 5/5

~UTIHOR. Horna, Otakar
TMILE: Printer for output unit of mathemitical computers
P-1KODICAL: Referativnyy zhurnal, Artomatika, Telemakhadka 1,
2, 55 - 56, atstract ?B~",)7 ? ;-a-.
A*;
M,
?atented is a printer for a digltal. compute7 ~uj-.ed :)r, ttio
7 7~__..: a:-Id si.mplliit:,, re_lab',I,,t.)- an!
"or fe
-Sir us,?~, edllrig the tapa I' &nd 'or
--n tled t.~ ,he tims -1 r,~ is i. io~
Df.tweei. dni Ti anc I;no
:~R edF,~ s %%~t tape
Di ~I:e Iotiov. t.h.4, e
31 -~onnoatec '~Le
lhe +
a L;jE &ry amp-ifiers Inot w-low-, ii :~`;r_rei iur-~-
r d 1 /3,

S 11A~'OW/002/1
Wvo
Printer for output unit of mathematical computers ~~'1160AI!261
made in the form of groups of capacitors 33, one of the poles cif which is. groWdod.
through the metal body of the discs and the other is acnnented to the bleAtfis 31.
on, taeir circ-,;mference (in the conEtruction. of thfj disj:~.,j 31 thesi! ctpa-
~,rb f.),-med uy LL-Le _'ocatlon of lmetaliic segments on tiie si,rfaae o1- Lille
df-'C5 separa!,.:~d 'rom tiie body of t-he discs 1--y a layer CLf d1elerl-ric). 7ho Chats-
~;n ~a r s s out, by F Lvi tehIng s1. r,,
_~rs 3-- -arr-ad out by U-,c grounded ;Iri 'n:pc prints'!; D f
A
-S carr'~ec, Iny cf,_~trFIng the ap,Pr,Dj:r~al.e~
-i~- L.Isci-.argea 4
-neun&rl~nln -f Lne do8l-xi Q-, to ) I :tt
tile
F_jiura ;Orrespoinds W the PriatInj. GE the C161t 1). 1r. t.10 c4xjrse
of the revolution of the "digit" diac, the digits I may- b4il prijiMad in the follow-
k_~nder the oonditior of aharging the appropriate OaPac'.V;r 33 aix.
4_*~;_'ts I's oaxi,-'ed out in an ara~',:gous ftituxarr a.;~-
L d1sca 3'.. rhere dre 3 f
:Abstrac-tler's note: Complete translation]
.M-wd 2/3

?-fnter for ou-.Pur unit of mathematical computers A.060/A 126
Card 3/3
j
. .. ...........

7
S/27 1/63/000/00a,C4, 1/~Aq
1106C/A126
AJ,-LHG,R: H:;n-.a,
spark-,:rintLng of output (iata o'~ a d1g:[tal cl-m-
puter
PERIODICAL: Referativnyy zhum,,~.-', ~'-vl~cxna,.A.ka, teleme?.,an',~'a i vychlnli".(!l'nqkY(l
)-stract 33399 PI
j Czeco. pat. , (31. 42d,
3/36, 42,n, 2c,, no. 101~~2, Cctober 15, 9('1)
~7zf7: Pa*,,~:-i'--~.4 -6 a )rinting htiad for unl-.a printing- dlgi-
La, by tne elecTr-,c shark Tie head consIE-,G of a lie" of needlq-
elec7LrodeS r-v,: .,~~je source .i; t wily '.!-,at evary
D. 1.
LAbssracierls note: Gomplatte translal;lonj
Card 1/1

HORKAj Otakar, A*, inza Mo.
Short-circuit current-limited power supply units. Sdel tech
12 no.7t262-265 JI 164 4.,
InexpenBive equipment for photographing ovaillograms. Thida
268-269

HORNA, Otakar A. inz. CSc,
Tia.Inaistor noise measurement. Sdal tech 12 no,,Ilt/a5_4l7 N 164.
Determining the service life of transistors by the time-response
of residual cur-rent. Ibid.1429

HORNA, Otakqr A., Inz. CSc.
7
Romarks on palse counters with tunnel d1odoin. Slaboprcitdy
obzor 25 no.10:62o-621 o 64.
1. Research Institute of Mathematical Kichines, Prape.

'Ram-"
46-66
L 14p(c
ACC NR: AT5027853 SOURCE CODE; CZ/2503/65/ooo/oll/doo' -('AM4:
A
'OR: Horna, Otakar A. Khorna, Otakar A..
UT11
ORG: Research Inotitute for Mathematical 1400414,~~'')r'ague
TITLE: Majority-logic synthesis by topological method
SOURCE: -Ceskoslovenska alcademie ved. Vyzkwnii Vatav inaten, aticky4M
Y
Stroju. Stroje-na zpracovani informaci, no- -;L1, 1965, 67-84
TOPIC TAGS: majority logic synthesis, top'61ogical synthesis ~methado
gate signal, computer progra ming., Bool#~# function
TRACT: A -t 1 gica~ a- Qd.'b3~ sol oalJod three input
ABS OPO 0 Ynthesis Wgth
majority gateF 01-gate, i = 2, n 3) V~ presepttd. "The method is
based on a certain generalization of geometrical interpretation of
the 3oolean function which has been worked out in Urbano-Mueller
paper (A topological method for the determination of-T-he minimal
forms of a 'Joolean function, IRE Trans. on Eleotmnic; Computero,
vol. EC-5. pp. 126-132 (September 1956)), and - apers j)r, A. Svoboda~,.
lp
(Graphical-medhanical aids for the synthesia of tolay clrculta',
Nachrichtentechnische Fachberichto, 11eihefte der DrrZ,, .2and 4,
pp. 213-218, Fr. Vieweg &; Sohn, Braunschweig 11)56). The topolql-IcUl.
synthesis method is based on the fundamental liigl,eal property o:V
Card IL3

ACC NRs AT5027FJ53
3M-gate which is described as follows: if there ~re the same
on two inputs (representing 0 or 1). then the output Oignal ot 314-~&at-.e
is independent of*the siGnal on the third Input (which thereforeell
be 0 or 1). Thus the third input represents a so-callod "don't care
condition (x). The "dowt care" condition can be considered as
-either 0 or I in each step of the synthesis Ir it leadeq to simpler
expansion. The same must be also valid for everSt "doji It care'! ton~-
-_~:dition (x- vertex) in the given function f. All runctions r are ri~p_
resented in the function Table I by a so-called direct n-cube diagricam.
The described synthesis me thod ia semi -Intuitive , L.e,, the reault ol'
the synthesis depends considerably on the choice of svitable Input-
functions f of various 314-gates. As the symhesis procedure is
relatively iist and simple and the effect of the selee,:tion of e,-.er3r
fij becomes apparent in each step of the syntheals, It is possible to
de ermine the moat suitable network conftguratLon for a 6iven purpoz-e.
The author states that in spite of basic similarity to the Mii1er
Winder method ( Majority-logle synthesis by geometric methods. 1;z
Trans. on Electronic Computera (correspondenoel'il, vol. EC-11, pp, 6S'-90
(February 1962)), the described topological methad is procedurally
simpler and clearer. Furthermore, full use Is made of the redui::tian
of argizments in each syntheois and of the given basic majority *jq~an-
sions. As compared with fficers-Robins method (rougl,cal Deeign with
three-input. majority gates, General Eleatrio, Electronics Laboratory
L

NR- AT9 027853

HOTIN A , 0 t ak- a r A . , i n 7. . " S a .
Interesting' receiver circuits. Vial tach l,',. no-1:426-27 Ja '65,

HOMAj Otakar A.p inz.
------------------------
Use of tho,funnel diode in high-frequency cirallits. Sdol tech 10
ho.10137&X9 0 162.

q. 7/ 06 z/o.O/Wooo/m/m/Ooo.)
Cj'Y I so OIL ?1 //#3/ 11r.0.10 /)4 a, 1141) X?,05/A140!6
AUTHOR: Horna, Otakar, A., Engineer
TITLE: The Esaki tunnel diode - a new semiconductor element
PERIODICAL: Sd;lovaci technika, no. 1, 1961, 6 - 9
TEM This 16 the second part of an article on E*saki t e1 1i des, which
desoribes the application of tunnel-diode characteristics in Zwitch~4': systems
(logical and multistable circuits) and relaxation (non-sinusoldal) .,oscillators.
Trne information containea in this article, Is compiled from Western sources. Tlhe
characteristics of a germanium tunnel diode (product of RCA)j the wiring of a
bistable tunnel-diode 6ircuit, the basis of several logical and mamory circuits
(flip-flop); and a wiring with two tunnel diodes, developed for Iogical (coni-
puter) ci-rouitry, referred to in literature as "Gotov twin" (Abstracter's note:
cc,uld also-be spelled Gota or Goto) are explained. The timn(?l diodes are fed
from 2 sources of symmetrical voltage (Eb) with approximately 200 my. Character-
istics of both diodes, plotted against ground potential, are shown in Figure 5.
11
lurves are inter6ecting'at stable points (-S) and (+S) (positive-resistance r-ogion
and at the instable point (SO) (negative-resistance region). When voltages (Plb)
Card 1/4

21881
11111-~: Esaki tunnel diode
z/o 14/6l/ooo/0oi/(Y,) 1 /ocg
A205/Ai26
are applied, and both diodes are precisely identical, tho voltage of point (S) will
lie on the 1 evel of the ground potential (80). In case, both tunnid diodes hav-~-
sufficiently congruent. characteristics, the power and voltage g%in respectively,
will be oonsiderable, so that the "Gotov twin" can trigger (over a Voltage dtvider)
sevPral other "twins", as desired in larger logical networks (electronic computers,
digttp,l measuring instruments, etc.). The disadvantage of this wiring is that,
both, input and output signals are fed to the same point (3) and signal propiaga-
tton in the circuit cannot be determined as In transistors. This can be avoided
by a so-called three-phase logical design. Individual'"twins" are fed with
pulzes- which overlap during part of their duration. The "-vwin" with the resistors,
(R R2 and R3) forms~ a logical majority circuit. Triggered with feed pulses, It
switch~_s to the z~tate, in which most of the prec.;6ding circuits are. In case r(*:!-
slstori~ (RI) and (R2) are fed with positive voltage and resistor (R3) with nega:-.ive
voltage of -the same 'magnitude, the potential of point (S1) will alto be positivs.,
and the "twin" switches during the feed pulse to the positive side. The logical
operation (logical sum and product) can be explained as a specia1 case of "majori-
ty function" (i.e. that an appropriate negative or positive voltage is fed to t11.3
point (S1) from the constant voltage source over one or the working resistors).
The magnitude and polarity of this auxilliary circuit ciui effect, that *,h! circuit
C~)7~-l 21A

The Esaki tunnel diode
:Z/014/61/000/001/001/009
A205A126
sWit0hes (e.g. to the positive side), only when a positive voltage is applied
also to all other.exciter resistors. The author descril:ms &Iso some'other appli-
cations of "Gotov ~uwinsll. such-as multivibrator circuit:3 for relvitation. oscilla-
tors, binary stages and frequency calibrators. There are 12 figures and 17 ref-
erences: 14 Soviet-bloc and 3 non-Soviet-bloc.' The reference to the most recent
English-language publication reads as follows: L. G. Cox: A tunnel diode crystal
calibrator, Journ. Brit. W, sv. 20, 6 8, str. 621 - 6'3, orpen ig6o.
Card 3A

23B81
Z/014/61/000/ooi/001/009
The Esaki tunnel diode A2o5Ai26
Figure 5: Characteri3ties of a "Gotov twin"
cop EO,
-S 56 OS
Eb-% -Eb
card 4A

HORNA, OWar--A,,,_~nz.
Tested transistor circuits. Sdel tech 9 no.61218-221 Je
161.

11#26
z/014/61/000/009/003/003
IE192/2382
AUTHOR: Horna, Otakar A., Engineer
TITLE: A transistor-ized television receiver
PERIODICAL: Sde"lovacl technikaq no- 9, 1961, PP- 331 - 335
t)
TEXT: The receiver was developed at the V16ST A.S. Popov
(A.S. Popov Telecommunications Research Institute). The
system is furnished with a rectangular picture tube having a
diagonal of 43 cm and a deflection angle of 114" (without
electrostatic brightness modulation). The receiver Is designed
for operation in television channels of metro and detimetre
range and its noise figure is better than 15 dB. Tho system
can be supplied either from accumulators having an output
potential of 20 V or from mains through a suitable rectIfyIng
system. The design of the receiver is based on seveeal now
types of transistors. Thus, the high-frequency circuits employ
mesa-type transistors whose cut-off frequencies are of the)
order of 500 to 1 200 Me/s. These transistors are suitable
for the high-frequency mixer and oscillator stages operating
up to 200 Mels. On the other hand, for higher frequencies it is
Card 1/10

17496
Z/014/61/000/009/003/003
A transistorized television receiver B192/8382
necessary to use a diode mixer and a double intermediate
frequency. The intermediate frequency amplifier operating at
40 Mc/s is based on high-frequency diffusion junction transistors
whose cut-off frequency is 200 Me/s. A high-frequency junction
transistor is used in the video amplifier but the last stage of
this amplifier requires a transistor with a high collector-
emitter voltage (about 80 V). The output stage of the line-
scanning circuit is based on two high-frequency power transistors
having a cut-off frequency of,2*5 Mc/s and a collector dissipation
of 8 W (similar to type OC23). The high-frequency stage (except
the intermediate frequency amplifier for the sotutd channel)'over
the receiver is based on the tuned circuit illustrated in
Fig. 1. The tuned circuit is formed by the IT-type network
which permits the matching of the low base impedance of the
transistor Tb and the high collector impedance of Ta this
is done by choosing a suitable ratio of the capacitance
CI+ Ck to C . and C b - The base capacitance C b together
with C2 and the capacitors C 1 and C k form a capacitive
Card 2/10

E746
z/oi4/61/000/009/003/003
A transistorized television receiver IC192/R382
divider which provides a tuning capacitance for the collector
resonance circuit. The resistance Ri 9 which connects the
collector circuit to the supply source, provides a suitable damping
for the circuit and limits the collector current. TI-Le input
circuit of the system for the frequencies up to 220 Mc/s is
similar to that of electron-tube television circuits. For the
frequency range from 450 to 900 Mc/s a different circuit is
employed. This is illustrated in Fig. 4. The circuit operatos
as a superheterodyne with double mixingi it is providoid with a
diode mixer Dl and a harmonic generator D2 . This ingenious Ar
method [Abstracter's note: author's wordsl makes~itjossible to
extend the operating range of the receiver to 900 X Ai. The first
intermediate frequency of the system is about 200 Me/4t. The
input signal is obtained from a symmetrical cable having an input
resistance of 300 Xt . The signal is applied to the circuit
consisting of inductance L27 and trimmer C21 * Tho mixing
diode is connected to a portion of L 27 ; simultaneously, a
signal from the oscillator is applied to the diode from the coil
Card 3/10

17426
Z/014/61/000/009/003/003
A transistorize(C television receiver
L28 * The ose2lator is based on the transistcr- T3 and its
output voltage is applied to the diode D2 and then to the
circuit L 29 - C22 ' which selectfi a suitable harmonic from the
spectrum produced by the diode. The intermediate frequency
amplifier contains three stages, the first two being provided
with automatic volume control. The input of this amplifier is
provided with three rejection circuits for the carrier frequencies
of the neighbouring channels. The sound channel of the receiver
is comparatively simple and Is illustrated in Fig. 6. The
intermediate frequency in this channel is amplifisd by a further
stage Tll , whose operating point is chosen so that it acts
as a limiter. The diodes' D3 and D4 are connected as a ratio
detector. The transistor T12 operates as a low-frequency
pre-amplifier and produces a signal for the transformer-coupled
push-pull output stage, which operates in class 8 and gives a
useful power of 600 mW. The most interesting circuit of the
receiver (and the most difficult to design) is the line-scan
generator. The synchronisation pulses for this generator are
taken from the output of the video amplifier. The pulses are
Card 4/1o

97426
z/oi4/61/000/009/00.3/003
A transistorized television receiver C199/9382
applied to the base of an n-p-n transistor, which operates as
a limiter with a zero base bias and a low collector voltage.
The pulses thus amplified have a constant amplitude. These are
applied to an inverter circuit. Equal but opposite voltages are
thus produced at the emitter and collector resistancoand these
are applied to a bridge circuit consisting of two diodes and two
resistors. The bridge circuit acts as a phase discriminator
which controls the frequency of a blocking oscillator. The
frequency of the blocking oscillator is therefore in synchronism
(as regards both phase and frequency) with the line-synchronising
pulses. The pulses from the blocking oscillAor are amplified and Pr
limited in a direct-coupled stage based on an n-p-n transistor
and are then applied to a driver stage through a tran-sforiner.
The driver stage controls two switching transistors which are
connected in series in order to achieve a high collector voltage
and output power. A suitable division of the pulse voltage
between the two transistors is achieved by means of two capacitanW&
A high-power silicon rectifier is used as the efficiency diode
in this system. The voltage from the linu transformer driven by
Card 5/10

ZA26
z/ol4/61/ooo/ooq/oo:5/003
A transistorized television receiver B192/9382
the switching transistors isapplied to the line scan coils and
to a high-voltage rectifier diode which produces an output
voltage of 15 kV. This is used as the anode supply for the
picture tube. An auxiliary winding is also prQvided on the
transformer for producing blanking pulies which are applied to kK
the second grid of the tube. The frar .,-scan circuit of the
receiver is much simpler than the lin.-scan generator. The
supply unit of the receiver is also ol interest. This is
illustrated in Fig. B. When the rece'.--er is fed front the mairLs,
the switches S I and S 2 are on. It this case, the supply
voltage is produced by full-wave rectL..'ication (DIO and Dll)
of the output voltage of the symmetri%%l transformer Tr 9
The rectifier is provided with an elt: ronic filter in order
to avoid a large choke and a large st, :)thing condenser. The
filter is formed by the transistors '4 and T'215 which form
a Darlington circuit whose input rec reS the ripple voltetge
through the capacitance Cql . This amplified in r24
Card 6/io

z/o14/61/000/009/003/003
A transistorized television receiver E192/E382
and T25 and in opposite phase is applied to tlxoj filter condenser
C92 1 in this way, C92 is effectively increased to the value
of 5 F. When the receiver is supplied from the battery, the
switches S . and S4 are in position a . The receiver contains
23 transAors andits performance is comparable ifith that of the
medium-class receivers fitted with electron tubes.
There are 8-figures and 2 non-Soviet-bloc references. VK
Card 7/10

HORNA, Otakar, A... inz.
Interesting transistor circuits. Sdel tech 9 mo,11:424-427 U 162.

HOFMA, Otakar. A. inz.
Interesting measurement lnstr=ents. Sdel tech 9 no,12:464-468
D 61.

SPALA, M.; RIEDL, 0.; JILEK, M.; HORI!A, 0
Dosimetry of the thermegenetic effect of the high frequency field
and its tolerance dos4� in rabbits, Sborn. lek. 43 no.12:349-370 D "61.
1. Ustav pro vaeobeenou a pokusnou patologli fakulty vseobecneho
lekarstvi University Karlovy v Praze, prednoota prof. dr. J. Ilepner
IV interni klinika fakulty vaeobeensho 10mrotyl UnIvertrity YUrloiry Y
Praze, prednonta prof. dr. M. Fucik UstreW vyzkumq untav potm--
vinarskeho pruayslu v P~raze, reditel inz. Fr. Vones Vyzkumy ustair
matematickych stroju v Praze, reditel inz. A. Lukas.
(RADMETRY)

HORINA, Otakar; SHCIIIPtl:CVA, T.Njtranslatorl; RAME'SICTY, If.p.,
ftktor tekhn. nauk, rod.; ShCHUROVA, Yu.P.,7 red.; IX1,10M.N.,
G.Ye., tekbn. red,
(Tenvometer bridge networkslTenzometriclionue mos-ty, Pod red.
N.P.Raevskogo. Moakvap Gosenergoizdatp 1962. 333-p.
(UMA 15: 10)
(Tensiomotars) (Transducers)

H01MA,Otakar A.Pinz.
Interesting circuits in transistor radio recievors.
Sdel tech 10 no.1:21-26 A 162

HCM Otakar A., inz.
Interesting audio frequency measuring instruments. Sdel tech 10 no. 3,.
102-105. March 162.

~LOW,,-Qokgr A,,_ inz.
Interesting use of Zener diodes. Sdel tech 10 no-4:W-145
Ap 62.

- HMMA, Otakarp- A., inz.
Unusual circuits using semiconductor elements. $del tecb 10
no*7:257-259 Jl 162.

HORNA, Otakar A., inz.
Schematic symbols for tunnel diodes. Sdel tech 10 i2o.10:390 0 162.

HOMAS Otakar A.,, inze
I ~ - -.-- -----------
Use of Enald- diodes In switch circuits. Sdel tech :1.0 no.1.1:4.14-4PO
if 162,

HORNA Otakar-A.p inz., G*So.
.N.Tunnal diodeow by Miloss Chmielowaki. Reviewod by OULkar A. liorm.
Slaboproudy obior 24 no.34 Supplt Literatum 24 no.,3:1,21j L23 .163.
I

HORNA, Otakar A., inz. C.Sc.
An interaWng receiver. Sdol tech 12 no.5rl82-.I84 My '64.

lic)iifi,'i, otc-dz,r ii., iriz.
ingeniol-s 'ranistor tech 1" 1,.;, ,
' - .. .. i I . (
jr- 1 64 .

094 -RG F. 7 /0176,
AUTHOR:,,Horna, Otakar A. (Engineer; Candidate of sc.'Lences)
ORG: none
TITLE: Transiztorized recuperation amplifier for audio f riquetOios
SOURCE: Sdelovaci technika, no- 5, 1965o 175-1"16
TOPIC TAGS:
transistorized- amplifier#-- aud! frequen
G dy ailpl~fie~,
ABSTRACT: The article presents and discusses the circuit' i, 9atin sistorl.M:d
recuperation amplifier for audio frequencies. Orig. art. has: 114) figures.
SUB CODE: 09 SUFA DATE: none ORIG REY.- 001 I)TH TWIF: 003
Card

XCC-RF--AF6M4?74 SOURCE CODE: CZ/0014/65/000/007/0250/C252
AUTHOR: Hornap Otakar A. (Engineer; Candidate of sciences); Panuska, Vaclav (Eng#eez
.......... 41571
ORG: none 06
TITIE: Accurate instrument for measurement of tunnel diode static responses
SOURCE: Sdelovaci technika, no- 7,, 1965g 250-252
TOPIC TAGS: tunnel diode, electric measuring instrument
ABSTRACT: The article describes a modified Goodman test met which permits measuring
the static characteristics of a diode in its entire range with an accuracy better
than 1%, for basic research on circuits with tunnel diodes and for the selection of
those diodes for certain circuits requiring close tolerances. Orig. art. has:
7 figures and 12 formulas. [JFRS1
SUB CODE: 09, 14 / SUBIK DATE: none / ORI'G REF: 002 / OrH REF: OM

L 33683-66
A SOURCh CODE:
C~ 7NR7 F602420
AUTHOR: iiorna,.,-Qtakar,.A.-,(Engiiieer; Candidate of scienceo)
*ORG: none
TITLE, Simple meter for internal combustion engines
SOURCE: Sdelovaci technika, no* 11, 1965) 410-412
TOPIC TAGS: voltmeter, tachometer, metrology, internal combustion engine, pres8ure
measuring instrument
ABSTRACT: The article describes an apparatus consieting of a voltmeter, compression
ratio meter and tachometer, intended to supplement other equipment at inspections
of motor vehicles, and gives detailed instructions about the methods of measurement.
Orig. art. has: 8 figures and 2 formulas. [JPRSj
SUB CODE: 14, 21 / SUBM DATE: none / ORIG REF: 001 / M REF: 001
R ~

V -T
ACC NRI AM-0-0548"
L
I INVENTOR- 11orna, ClUkar U,,ngi-neer; Gwididate of Progroo)
ORG: nono
TITLEs Transistorized pulse generator for intograted CZ Pat. No. PV 4250-
65
SOURM Vynale7,y, no. 1, 1966, 9
TOPIC TAGSt pulso generator, transintori3ed aircuit, cii-cuit brvakor
ABSTRACT: An Author Certificate has boon issued for a transintorized pulao generator
for saturation charge, especially in monolithic lntegratqid circuits. Tho generator
operates near the transistor base, paralleled by a breakor connected to the transis-
tor base, a collector-voltage source, and a collector reolatameot. The voltagil in
determined by tho following relationt
V6 1 3. R 2+ V Ob + 0. 6 V
where >
13 is the base curren w Ilo V eb in the voltage across the emitter-bast)
junction. [KP]
SUB CODE: 09/ SUBM DATFt OIJuI65
1/1 Z

PINSKIR, Prem7al; BULTASOVA. Helena; HORNACAK, JiLroslay; HOBAK. Miroslay
Pathogenesis of adrenal hyperplasia. Cas. Lek. cask. 96 no.42:1325-
1333 18 Oct 57.
1. 1. interni klinika VLL v Hradol Xralove. InternI. katedra, Ustavu pro
dookolovani lekam v Praze. VyzkumW ustav pro farmacil a bichemil
v Praze. Ustre"i sdravotnicka laborator VIA v Kradzi Irralvae.
P. P., Hradec Kralove, VIA
(ADRENAL GIANDS, die.
hyperplasia, atiopathogen.
(HTPERTROPHY AND HYPIRPIASIA. etiol. & pathogen.
of adrenal hyperplasis (Cz))

PINSM, P.; KORAX, M.; BUMABOYA, H.;.210.
Cortisol metabolism in postnatal adrenal hyperplasia. Geek. fysiol. 8 U0.3:
234 Apr 59.
1. 1. interni klinika a Ustredni biochemicka laborator fakultni nemocnice,
Hradec Kralove, Interni katedra Ustavu pro doskolovani lekaru, Praha.
Vyzk-tLmrq ustav pro farmacii a biochemii, Praha. Predneseno na 111. fyaiolo-
gickych dnech v Brne dne 14. 1. 1959.
(ADIRML CORTAX, dis.
hyperplasia, hydrocortisone netab. (Gz))
(HYDROCORTISONN, metab.
in adrenal hyperplasla (Oz))

PINsM. P. ; XORAK, R. ; BULTASOVA, If.; NORNAORK. J.
Accelerated breakdown of cortisol in postnatal adrenocortical
hyperplasia. Cas. lek. cask. 98 no.23:705-707 5 June 59.
1. 1. interni klinika a Ustredni biochemicka laborator fakultal
nemocnice v Hradci Kralove, Interni katedre. Ustavu pro doskolovani
lekaru v Praze-&ci a Vyskumrq ustav pro farmaii a biochemii v
Fraze P.P.. Hradec Iral6va, 1. Interni klinUa.
(ADRSNAI CORT31, dis.
postpartu,m hyperplasia, accelerated breakdo-dM of
hydrocortisons in (0s))
(HTMOCORTISONS, metab.
accelerated breakdown in postpartum adrenocortical
hyperplasia. (Gs))

CZECH01-)'LOVAT,-,IA
J 11ADOVEC, J;I UPATOVAt J., Raearch Institute
t4~ 1
for 'lharmacy and Biochemi try (Vyzkumny ustav 1pro fariacii
a biocheinii), j'rn!.ue, Branch in Rosice nad Lal)em, Dr, Rngr
",I
0. (",irector.
"ilethods of 'C"val:iating the Antilipaemic Rf..f'eat in Vivo vnd
i.n Vitro in Rats"
Pragme, Casopis Lekaru Ceskych, Vol CII, No 23, 31 May 63,
pp G41-644.
Ab-.tract [Authors' Bing-lish sum-mary, modified]: Tietliods, and
their Fo-Clifications, of evaluating the antilipaemic effect
of substances, particularly of the heparin type. ":hey in-
clude a test of antilipaemic action in vivo, tests of the
activating effect on the clearing eysten, and blood eo-Israses,
Interpret,a'Aon of results obtained by these met',ods. Bight
re-Cerences, includinP, 3 Czech.

HORNAX. I.
I--------
High altitude climatotherapy of bronchial asthma in children.
Cesk.pediat. 15 no-9:774-776 s 16o.
1. DetBky liecebny ustav Strbeke Pleso. primar KUDr, Irenej Rovaak
(ASTHKA in infancy & childhood)
(CLIKA23 ther.)
(ALTITUDE)

!,I . . I *, I' Tj.~ 7 1 ~,' 1" , .7
110MAKY p .1 L. 111. 1.
biviti-ticulum of the urethra in a frale. Rozhl. chir. 44 ti:).6:
401-402 Ju 165.
1. Urologicke oddelanie Obvodniho ustavu. raroelniho zdravi v
TroncIno (veduci WDr, 1.1, Urbanak).

ZVARA, V.; HORIUK, M.; JAKES, F.; LABADY, F.; ANGM, A.; S'ITMv A.
Results of the treatment of epithelial bladder tumors in the
light of 10-year experience. Bratisl. lek. litity 45 no.10:
627-637 30 N 165.
1. Katedra urologie Lekarske fakulty Univerzity Kominakeho v
Bratislave (veduci doe. H)Dr. V. Zvara, CSc.).

HORMAK, T. ; JIRICEK, L.
- Z-
HORNAK9 T. ; JIRICEK, L. Oscillograph used for the observation of very slow
phenomena. p. 236
Yol. 4 no 8 Aug. 1956
SDELID~ICI I*SCH,NIKA
TECHNOLOGY
Praha, Czechoslovakia
So: East European Accession Vol. 6., no. 2p 1957

Hornak, T.
Hornak, T. A simple synchronizer for industrial television. p. 361j.
Vol. 4, no. 12, Dec. 1956
SDELOVACI TECHNIKA
TECHNOLOGY
Czechoslovakia
So. Past European Accessions, Vol. 6, 14kv 1957
No. 5

HORNAK, T.
Contrlbvtion to mtabilizing the 1-ulso duration In momstable wltivibrator.*.
p. 700
SUBOPRiUDY OBZOR. (Misisterstvo presneho strejirenatw, blinisterst'10
spoju a Vedecka Technicka spolecaest pro eleztrote6miku pri GSAV)
Praha, CzechoslcvsAia, Val. 20, no. 11, Nov. 1059
Manthl,r List of East European Ac:-essions (EFAI).LC, Vol, % no. I,
jP-A' 1960
UAC1.

-~HPRNAK, Tomas, Inz.
Delayed modulated signals on carrier frequency. Slaboproudy Obtor 21
no.3:172-173 Mr 160. (EW 9--8)
1. TESLA Vysocanv n.p., Vyzkumne a vyvojove pracoviste
(Radio-frequency Oodulation)

HORNAK. Tomas, inz.
An economical zonostable circuit with an LC timing network.
Slaboproudy obzor 21 no.4:239-241 Ap 160. (EM 9:8)
(Electronic circuits) (Oscillators)

24150
Z/03 61/022/007/001/004
D259YD301
AUTHORS: Hor.,Yhk, Tomhsvt and Jilvidyek, Lubomir, Engineers
TITLE-. A map projector for radar display
PERIODICAL: Slaboproud~ obzor, v. 22, no. 7, 1.961, 391 - 397
TEXT: This article describes a projector arrangement enabling the
superimposition on a radar display screen of additional informa-
tion, for instance a map. This can be of real assistance in inter-
preting a radar picture. The example given shows the application
of the projector in Czechoslovak air traffic control.. In the elec-~_
tronic method described the additional information (i.e. the map
picture) is fed into the radar circuitry and it is jointly diz-
played on the screen. Once set, this ensures perfect coincidence,
regardless of scale changep and there is no parallax. The princi-
ple used is basically the same as that used in TV for picture
scanning. The map is placed into the optical projection path from
a special picture tube onto a photomultiplier, 'the multi-olier re-
Card 1/4

211150
Z/03 61/022/007/001/004
A map projector for ... D259YD301
ceives the light spot modulated by the mapy this is then amplified,
fed into the radar signal circuitep and projected onto the display
screen. The tube supplying the scanning light opot has a flat
screeng and is provided with the necessary olectronic circ-Ats' e-g~
amplifiers, synchronizer, supplies, etc. In prSLCtical application,
radar set type OR 2 was used. This is of Czechoslovak manufacture,
and ia intended for air traffic control. The photomultiplier used
was also of Czechoslovak manufacture, model 611'K411, cathode dian-e-
ter 40 mm, 10 stage. A OR tube was used, model 130QP56/16, screen
diameter 115 mm, with magnetic focus and deflectiono blue screen.
The objective used was a 45 mm 1:2 (used at 1:4.) Oponar. The arran-
gement consisted essentially of the three following electronic
groups: 1) Fjoture tube with HV source; 2) Time base for the picture
L
tube; 3) Photomultiplier with amplifierp source etc,. apart from the
necessary control for synchronization etc. Great stability is
essential, as any change of the picture between the diaposit'ive and
the display would introduce errors in the final reading. The catho-
de of the OR tube receives the time base signal (circular), its
Card 2/4

2U50
Z/039/61/022/007/001/004
A map projector for ... D259/D301
high voltage being supplied by a HP source (10 kV). The time base
has a somewhat unusual circuit, to obtain greater [)i6ture stabili-
ty than usual. The circuit is then described and illustrated in the
article. The picture tube and photomultiplier are connected in the
usual manner, using well known principles. The complete instrument
was used for several months, and was in use all day long; tho sett-
ings were checked daily, by means of some specially selected points
of known location, which were compared with the display on the ra-
dar set. Stability was goodp the variations less than 3 %. It was
found advisable to work at a low brightness, because the photomul-
tipliers sometimes have an uneven sensitivity over their surfaces.
The 10 kV part worked well and without any trouble. The types of
map used to project onto the display are illustrated, one shows
200 km around Praguet the frontieral and the air corridorst the
other shows 60 km around Prague, with the rivers Vltava (Moldau)
and Labe (Elbe), and the stacking areas. The authors believe that
there are other applications for this system especially in the
techniques of regulation and automationt by modifying the system
Card 3/4

2h150
Z/039/61/022/007/001/004
A map projector for ... D259/D301
according to requirements of use e.g. a different time base. There
are 8 figures and 2 references: 1 Soviet-bloc and 1 non-Soviet-
bloc. The reference to the English-language publication reads as
follows: Soller, Starr, Valley: Cathode Ray Tube Displays. McGraw-
Hillp 19489 570 - 576.
SUBMITTED: March 24, 1961
Card 4/4

h5697
Z/019/63/024/001/004/006
f, 810 El I 92/r,382
AUTIi(.,,.,S: tiol-60k. Tomns and i't-nvda, Bolm.,51-tv,
TVITL Rectatipilar tor vith a rise ti-me of
0 x 10-9 S
F1~0o))ICA1-: sliiloopruxiaj oly~,,nv, v. '-14. im. .1, ll~-63, 25 - 27
T)..,%T : ]'It(-- circuit diapri-am of the getirsratnr is ishown in Fig,.l.
I Ile i rist rume tit i !A hivie-C I oti k 110%vt I m On da r (I c I r-cm I t-s . u It rtreby the
otitpiit !iigiml 'i,-~ produced by ,jtx(-.cc.4,4ive trimplification and slicing
of the wave-form ('erlerated by tin a.-ftable gymmetricni multivibrator.
The multivil-wator is, based oii the s(,tcond tube (sop llie figuru) nAid
it.-; Fre(liteticy coo be viried from 00 - IjO(, kc/:~ by changing the
voltiq~(! lipplic(I to thu 1%-C tigiiiii.- cirettitq. The tilit, precedi.rig th.-
wtl)tivJ.I)t-;ltor j...3 II-qc(I to pojier,-ite ~;,ytichrnnlsition oi, trivtumrin~
I ILI I Se,-! Of' h Ot 11 IM I ~kl-i tiC R. The 11)(1,1tivibritor irs followed by ,x
doobl.f. triude I, whose _cvj.tU- are directly com)ccted to one of
of, the IllulLvibrator. Thc mignal at the ancide of L- is
amplAl-Led. The i)ext tube, El I j--, Coupled to E by a ~) lic
) I L' t. 1-4 1) 1- k. 'llie tioxf, stape consDit." of ttibes El Ad 136connected
j,ij parallel which, togetli-t- with the oLll tit S?age 1~ f orri a
C.,%rd 1/3)

Z P" 'r,()/6 -
.5/024/001/0C VVC 6
'tt~ctniigiilar pulse-generator .... E 92 /B.382
bilateral lintiter. The cathodes of E and Ell arp connected
5
together allo joiric(l to tile. Cathode of' il. 7* AC iiignal il"Ill.-C1111,15
at the trrio of 7 'fill, ttibe..'i E, .111dE0fire CUt off ourinS't
Hic, negative hal.17-cycle at the anooe of r,I The tube L La
ftil.ly open during this intcy-val. The ano(le of L is tlkeZ
directly to the output socket and the load. The 71113plitude of tile
OLltj)llt pulses i--i depetitlent ott the wavir impedance of the cable u!;,Td
in the anorle loa(t ami amolints to 5 V across 70LL and 10 V for a
caUle of 150 fl - Tho.-re are 5 figures.
A:c>:-;O Cl AT.1 ON Svyz1