Inspection Report No. 2 - CV-24 Converter (Classified)

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-02820A001200060025-5
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 9, 2016
• Document Release Date: May 15, 2001
• Sequence Number: 25
• Publication Date: December 27, 1966
• Content Type: PERRPT

OPTIONAL FORM NO. 10 C+. 6 p;..v 1 - -
O.AAV 1062 ITI
A0prFa ,c xwr.llelease 20U4i07/28 : CIA-RDP78-02820A00120006ODet-5
UNITED STATES GOVERNMENT
EP 66-275
DATE: 27 December 1966
25X1A5a:1
25X1A9a
sU.DJECT.''.Irtspect'ion Report No. 2 - CV-24 Converter
Project Description:
The CV-24 is a dual channel., IF convertertcapable of converting
inputs Of 500 kHz, 455 kHz, or 100 kFIz to either 10 kHz, 15 kHz, ox'
22 kHz. Separate identical converter channels are provided so that
two receivers may be operated in diversity pairs for reception of
ON/OFF CW signals at 300 WPM. Both headphone and loudspeaker opera-
tion are provided. The following technical characteristics are
applicable :
Input impedance - 50 ohms and high impedance for'bridging
(each channel)
Output impedance - 600 ohms each channel
Power requirements - 10 watts, 120 volts ?10%, 50/60 Hz,.
single phase
Dimensions - 1911 rack mounting
Weight - under 10 lbs.
25X1A
Persons Attending:
Agency
Non-Agency
Approved For Release 2001/07/28 :Llpr@j420"As11Q25-5
iti
l C
t
I
a.
a
os
:
n
b.
Request for Procurement ction: 28 June 1966
c.
Initiation Date:
29 June 1966
d.
Completion Date:
30 December 1966 - Phase I
e.
Deliverable Items: Phase I - One prototype
Phase II - Ten service test models
Date of Meeting: 19 December 1966
4.. Place of Meeting:
Buy U.S. Savings Bonds Regularly on the Payroll Savings Plan
25X1A5a1
25X1A5a1
 A1%pr6v d For Release 2O Y 7/28 :
820A00120006O 6-5
UBJECT:. Inspection Report No. 2 - CV-24 Converter with
R&D Subject File
EP 66-275
25X1A5a1
25X1A5a1
Contractor's Performance:
a. On schedule and expected to remain so: Yes
b. Within obligated funds and expected to remain so: Yes
c. Satisfactory technical progress: Yes
Project Status:
The CV-24 prototype was sent to the Laboratory for an A&A during
the latter part of November. A preliminary evaluation of the converter'
resulted in the discovery of several areas of poor workmanship (excess
solder, loose screws, components tied together in mid-air, etc.).
Since these problems did not directly affect the performance of the
converter, the A&A was continued.
However, further evaluation uncovered several areas in which the
CV-24 did not meet specifications. Intermodulation distortion was
found to be only 20 db down below the level of two equal amplitude
in-band signals, although the specifications required the distortion
to be at least 40 db down. One channel has too much crosstalk. In
addition, excessive 60 cycle hum still prevails in the audio demodulator
section; this was brought to the attention of the contractor when the
converter was in breadboard stage but evidently was not completely
eliminated.
The CV-24 converter was returned to the contractor for rework
a
d i
n
s expected to be returned to this Office by 27 December 1966.
Distribution:
OL/PD/PCB/CAS
R&D LAB
OC-OS
ESB
Monthly (3)
EP Chrono
bjp/3152(27 Dec 66)
Approved For Release 2001/07/28 : CIA-01200060025-5
., u
25X1 A9aa