CONFERENCE REPORT - (SANITIZED) RS-16 FABRICATION

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-03424A000500070036-2
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 27, 2016
• Document Release Date: November 26, 2012
• Sequence Number: 36
• Publication Date: August 29, 1958
• Content Type: MEMO

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Declassified in Part - Sanitized Copy Approved for Release 2012/11/26: CIA-RDP78-03424A000500070936-2
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Office Memorandum ? UNITED STATES GOVERNMENT
TO
FROM :
: The Files
susla (or: Conference Report -
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RS-16B Fabrication)
DATE: 29 August 1958
1. On 13 August 1958 a conference was held at Alcott Hall
to discuss the fabrication of 10 RS-16 High-Speed Agent Sets being
undertaken by the under RD-103, T.O.
10. Present at discussions concerning this program were:
2.
reviewed the changes called for in the present
teak for RS-1 fabrication:
a) the coder mounting plate will be stainless steel
instead of aluminum and the gear train and bearing
materials will be improved. The tape will be
rerouted and its tension changed in order to eliminate
jitter in the output pulse.
b) a 12-volt 5-ampere-hour cell will be used and its case
will have a connector for battery charging.
3. The proposal suggested a one-half indheincrease in
each dimension of the R8-16 to make the interior of the equipment
more accessible. Oointed out that investigation has
shown that if this change is made, costs will increase greatly since
the present ease is a standard size readily available, and a new
case would require tooling.r--inow plans to retain the present
length and width dimensions, but to use a wrap-around case with
removable top and bottom panels. The overall height will be
increased by one-sixteenth of an inch, due to an additional o-ring
used to keep the RS-16 waterproof. The removable bottom panel
will allow rapid access to the interior of the equipment for
frequency changing and other adjustments. The wrap-around case,
which is removed only for major overhaul, will strengthen and
protect the chassis while the equipment is being serviced.
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CONFIDENTIAL PAGES '112? REV CLASS
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Declassified in Part - Sanitized Copy Approved for Release 2012/11/26: CIA-RDP78-03424A000500070036-2
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Declassified in Part - Sanitized Copy Approved for Release 2012/11/26: CIA-RDP78-03424A000500070036-2
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-'YNIULI I IML
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roposed the following changes:
the area of product improvements and
L
a) Simplification of frequency changing by elimination
of the mechanical linkage between the HFO and buffer/
driver. The entire assembly to be redesigned around
a new switdhing plate.
b) Replacement of the special 55'C crystal ovemn with a
standard 75'C oven so that CR-27 crystals may be used.
These crystals will be used on all four bands - overtone
crystals for band 4 will no longer be required.
c) Since even the best printed circuit boards are susceptible
to moisture penetration, the critical HFO in the
transmitter should be constructed on a steel plate with
components mounted on teflon feed-through insulators.
d) Standard headphone pin jacks should be used in place
of the special audio output connector used in the
original RS-16.
e) The low voltage bias supply should be regulated by
means of a Zener diode.
f) A mu-metal case around the sequence timer and high
voltage power supply should be used to reduce interaction
between stages.
The high voltage power supply for the RS-16 may be
transistorized for higher reliability and efficiency.
g)
h) The keyer amplifier is felt to be overly elaborate
and an experimental unit with half as many components
has been built which performs the same functions.
5. All of the above recommendations were approved. At a
conference later in the day atP it was decided that these changes
would be incorporated into the 16 units as well as those
being made by will furnish printed circuit boards for the
revised keyer amplifier, and will provide with details of
the redesigned UFO as soon as they are available.
CONFIDENTIAL
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Declassified in Part - Sanitized Copy Approved for Release 2012/11/26: CIA-RDP78-03424A000500070036-2
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