Trip Report - OS-12 Stable Variable Frequeuency Oscillator(Classified)

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-02820A001000060004-0
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 4
• Document Creation Date: December 9, 2016
• Document Release Date: May 12, 1998
• Sequence Number: 4
• Publication Date: December 11, 1964
• Content Type: TRIP

- Memorandum
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UNITED STATES GOVERNMENT
The Files: Contract 684, Task Order 7
25X1 A9 ,ROM : Mr.
1. Project Description:
The OS-12 is a compact, stable variable frequency oscillator. It
has a frequency range of 2-30 Mc, spurious output of -65 db, and an
accuracy of ?1000 cps. The output power (1.0 V across 200 ohms) is
5.0 mw and the input power at 12 (?10%) is 216 mv. The approximate
size of the OS-12 is 4" x 2" x 1".
2. Contractual Information:
a. Initial Cost: $40,791.00
b. Request for Procurement Action: 18 September 1964
c. Initiation Date: 28 October 1964
d. Completion Date: 21 June 1965
e. Deliverable Items: One engineering model - 28 May 1965
Monthly Reports - on/before 21 June 1965
Equipment Instruction Manuals -
on/before 21 June 1965
Final Engineering Report -
on/before 21 June 1965
One set reproducible specifications and
drawings and additional five copies of
each on/before 21 June 1965-
3. Date of Meeting: 2 December 1964
EP 64-318
DATE: 11 December 1964
21A5a1
4. Place of Meeting:1
5. Persons Attending:
Agency Non-Agency
SuBTECT: Trip Report - - table Variable Fre uenc Oscillator with
25X1A9a
Mr.
Mr.
Mr.
Mr.
25X1A5a1
6. Contractor's Performance: . ,
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EP 64-318
SUBJECT: Trip Report - OS-12 Stable Variable Frequency Oscillator with
6. Contractor's Performance:
a. On schedule and expected to remain so: Yes
b. Within obligated hands and expected to remain so: Yes
c. Satisfactory technical progress: Yes
25-5a 1
To Project Status:
The progress of the OS-12 was discussed with Messrs.
25X1A5a1 and and was found to be favorable. An advance copy of
25X1A5a1 rot monthly technical progress report was reviewed and
is included as part of this trip report. The report covers the
work accomplished in the period, 19 October 1964 to 19 November 1964.
Effort in this period was expended on the following two tasks:
1. The preparation of a statement of work, task
matrix, and schedule.
2. The circuit design and performance evaluation
of the critical circuits.
The critical circuits include the VCO-1, VCO-2, Spectrum generator,
Mixer-2, IF amplifier, and the frequency/phase detector as indicated
on the block diagram included as an attachment. All the critical
circuits have been breadboarded and performance objectives obtained
as listed in the included progress report. It would be advantageous
to the reader to read the progress report at this time. This
progress was verified by the undersigned.
25X1A5a1
In the interim period since the contractor's first monthly
report and the date of the inspection, - has completed an 25X1A5a1
evaluation of the frequency/phase detector which indicates that the
circuit concept is satisfactory. The 66 Mc mixing frequency was
derived by selecting the 22nd harmonic from the spectrum generator
output (with LC filters) and tripling to 66 Mc (see block diagram).
A 66 Mc crystal . . . .
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 Approved For Release 2001/0712 rI ' 8-0282OA001000060004-0
EP 64-318
SUBJECT: Trip Report - OS-12 Stable Variable Frequency oscillator with
25X1A5a1
2fk1A5a1
A 66 Mc crystal filter has also been ordered to make possible a cost
versus size trade-off consideration. A similar trade-off consideration
will be possible for the 150 Mc offset frequency. Mixer 3, (68 to
69 24c-66 14c) has now been designed and breadboarded and was also
found to function satisfactorily when driven by the IF amplifier (68-
69 Mc) and the 66 Mc line from the spectrum generator. All the
critical circuits are now being interconnected to make possible an
evaluation of the phase-locked loop. The resistor matrix for control
of the VCO's is in the final design phase. The 1 Mc crystal
oscillator is being tested for accuracy and stability and has met
requirements thus far.
Attachments:
1. - Technical Progress Report dated
2 December 1964
2. Block Diagram
Distribution:
R&D Subject File watts.
Inspection Branch OL/PD watts.
R&D Iab watts.
OC-OS watts.
ESB wo/atts.
EP Chrono wo/atts.
Monthly (2) wo/atts.
OC E/R&D EP/-/amw (11 December 1964)
25X1A9a
25X1A9a
3
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ORIGINAL DOCUMENT MISSING PAGE(S):
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