AUDIO OSCILLATOR, IN-9

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-03535A000600080003-3
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 1
• Document Creation Date: December 22, 2016
• Document Release Date: April 11, 2012
• Sequence Number: 3
• Publication Date: August 21, 1958
• Content Type: MEMO

Declassified in Part - Sanitized Copy Approved for Release 2012/04/11: CIA-RDP78-03535A000600080003-3
STANDARD FORLQNO. N D ? / ~ n ` I I'
Memorandum ? UNITED STATES GOVERNMENT
Office
SPm 8-765
TO : Chief, Engineering Division, OC DATE: 21 August 1958
FROM : Chief, Supplemental Programs Division, OC
suBJECr: Audio Oscillator, IN-9
REF : ENG 8-491
1. Transmitted herewith is the prototype model of the
unijunction audio oscillator, IN-9, and the instruction manual
which was received from your Division.
2. It is requested that frequency versus temperature tests
be performed to determine the stability of the unit with variations
in temperature from minus 20?C to plus 40?C. Based upon the results
of this additional test, the number of units needed to meet opera-
tional requirements will be determined.
25X1
STAT
Attachments:
1 - IN-9 unit (1 each)
2 - Instruction book (1 each)
Distribution:
Orig & 1 watts - Addressee
(Acting
He a r1lu ` I
DRUG CL!2SS
2 Z' r: ... .:. ? JUST ip
Declassified in Part - Sanitized Copy Approved for Release 2012/04/11: CIA-RDP78-03535A000600080003-3