A PROPOSAL FOR TRANSISTOR BANDPASS AMPLIFIERS AND THE STUDY AND DEVELOPMENT OF 500 MCS TO 1000 MCS TRANSISTOR AMPLIFIER

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-03424A001200140040-1
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 8
• Document Creation Date: December 22, 2016
• Document Release Date: February 22, 2012
• Sequence Number: 40
• Publication Date: June 7, 1960
• Content Type: REPORT

Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03424AO01200140040-1
UUNH I . _ k I IA L
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DOC REV DATE 49
TYPE .~~-----
ORIO COMP ~ OPI p-
?AGES 9------ ReY CLASS -.-~-
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REASON
TIIANSISTOR BANDPASS AMPLIFIERS
AND
THE STUDY AND DEVELOPMENT OF
500 MS TO 1000 MCS TRANSISTOR AMPLIFIER
Prepared by:
June 7, 1960
COI
IAL
Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03424AO01200140040-1
 Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03424AO01200140040-1
,etImm i c.C this gscLac all descgibes a gwoup of five P _ndgz?ss ?sam~sus3C,
c ' ?m3 s(n~~ ~T?Yie sUfteq eney range of etch type pus Lire q
= a' st-c6 age
1, 5D d 90 sr_es
2 2O - i?50 me's
30 50 250 w.cs
4. 250 500 cc
5. GGO '7cG rLwAs
5 each
5 e aCiii
10 each
10 eac
5, eaca
~'wC i:Qi1 ~' G21L''.^C7SLu'~h ~L'Ei 4BG'S^'O r t v JSQ.L
sftL!E7 aev~~_ca,.~r LFUt ^ -,GO tEes to 2000 mes
2L Q ''. 3 zbtrj ? c^.Bq; 1. ~? 3 Vial be desi ;c c lik3 dl $?L's ' t'S Q3S
VA 2 . 2 b (t ^ 6 C a 0 Ei t as mow L Ca L
Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03424AO01200140040-1
 ? Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03424AO01200140040-1
SBGT}ION I
TBCHNfIGA% PROPOSAL
FOR TRANSISTOR BANDPASS AMPLH IBRS
The tcansistorr preaii plifiews wiil give It to 43 db itiproveer...ent An the
g sc- tangeratio1 sensitivities. The tangential sensitivities for the
30 a 250 sacs and 250 - 500 s receivers are based on 300 erv across 50 o.FZFaso
Tk gain of each proposed amplifier is sufficient to improve the system
pewfori a as tabulated belot-j:
1, Amplifier Spaciifications
Gain
Bandwidth
Noise 1 lure
Ttrarasistoos
Input Impedance
output Impedance
Power Requirements
Apprrodamat a Size
QuantAtV Requested
50 db
50.-90 mcs
9 cab
4 - 24700
50 ohms, noise match-Led
50 Ohms VSIUR < 2
16 ma (T 12V
I A a1, z 3" 5 each
Preseunt S aces Specifications
and Pass 5090 sacs
Video Bsndc,adth 2 mcs
Equivalent Ba width 14 mcs
Equivalent Noise Figure 45,5 cab
Tangential Sensitivity .50 dbm
,111 IS177vi9'1~
Yst m Specifications ti~;h Pr;caraaro
Noise Figure 9 db
Tangential Sensitivity -83,5 dbm
Minimum Gain 33,5 db
Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03424AO01200140040-1
 - Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03424A001200140040-1
2. Amplifier Specifications
Gain
&andviidtlh
Noise Figure
Toansistorzs
Inp t Umpedance
Output Impedance
Power aeqlAioements
App oztimate Size
QuantAty Requested
40 db
100-150 mcs
9 db
3 - 2N700
50 ohms, noise matched
50 ohms 11S rJR < 2
16 ma @ 12V
W i3"n 2"
5 each
1oesent :system specifications
Band Pass
Video Bandwidth
Equivalent Bandwidth
Equivalent Noise Figure 45,2 db
Tangential Sensitivity --50 dbm
System Specifications with ITee po
Noise Figae
Tangential Sensitivity .8604 db:
3. Amplifies Specifications
Gain
Bandwidth
Noise IFiguarce
Transistors
Input Impedance
Output Impedance
Powea Requi ecaents
Appoo3simate Size
Quantity Requested
20 db
50250 mcs
9 db
3-2N7OO
50 ohms, noise matched
50 ohms VSi;JR / 2
24 ma @ 12V
11" x 3" n 2"
10 each
Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03424A001200140040-1
 Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03424AO01200140040-1
1Pi eseliit s7stem Specifications
Video Bzadvaidt h
Equivalent Bandwidth
Egtanva1et t Noise Pfigaze
50250 sac s
200 ic
9 tics
14 db
Systtr~ts S~Secaga?a~i~~t, ?~~~~ pQeam~p
Noise Piguage 9 db
Tangential 5e?nsatravAtV _803 dbm
Minimum Gain 33l db
Tangential Seasittivitp -77.5 dbm
(300 bw @ 50 ohms
4o Amplifier Specifications
Gain
Batsduid tch
Noise Page
Tsl ansastor s
Input ttapedance
0uatp zt Rmpedarce
Pane' Requirements
ApppoZimate Size
Qtzantitg Regnaes ed
Prresentt System Specifications
Baud Pass
Video Bandwidth
Equivalent Banduidth
Equivalent Noise Figtnae
Tagnge
18 db
2504500 mcs
22 db
8 m 2N700
50 ohms, noise matched
50 ohms VSWR < 2
32 ma @ 12V
$A" rs 3" t 2"
10 each
250.500 me s
200 lrc
10 tics
39,5 db
ttiaa Sensitivity; -5705 dbm
(300 uv @ 50 ohms)
System Si ecificntaons ttith Pheau p,
Noise Pigunrce
Tangential Seansitivitv -85 dtm
2705 db
Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03424AO01200140040-1
 Declassified in Part - Sanitized Copy Approved for Release 2012/02/22 : CIA-RDP78-03424AO01200140040-1
50
~~tieL S~yc 1.sc:? aos
35 db
133K&wAd tb
600-700 w c s
No s PAO
16 cT
Tmasnsto s
US - 2N700
c L'J:7t 1Y:Zs r?C~
PQ -J2 ~G'~j^ $L~Cd 4ebYeE:a'ti
AI?Lt1? Size
Q'~a~ ; ;7 tie r sLcd
50 cis, moise m caed
so OL- s ",TSVjR < 2 0 5
72 Qua 0, .2V
5 each
Poe--amt S 7stecu SrpacAf ;cations ~ sWen S = fcZtAc.zs c1$t;a )?Ocnwya
Banal Pass 600.700 rac s
~111deo ~oFIIt?Sfli~3@lh 2 LLTcs
EquA`:'a ent nar..L;Z ict-'i'a 20 sac s
:36y=1vaa2enli ., Dols? Fig= e 44 d b
TIIn3c 111, 1z i ?emss is ? s I?~ieLI''~ deVQ eci to c oC3~Q
t1,20,2'Ouggh e