OTR SPECIFICATIONS TO TSS FOR AUDIO-VISUAL DEVICE

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP61-00017A000100090006-7
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 1
• Document Creation Date: December 22, 2016
• Document Release Date: March 27, 2009
• Sequence Number: 6
• Content Type: REQ

C
Approved For Release 2009/03/27: CIA-RDP61-00017AO00100090006-7
ATTACHMENT A
OTR SPECIFICATIONS TO TSS
FOR AUDIO-VISUAL, DEVICE
1. Recording time - up to 30 minutes
Tape speed - 7.5 ips, constant speed
Number of channels - Two channel ma netic tape recorder. Provide
facilities for either single track or bilingual recording end
listening which also provides for making and playing back tapes
having a special control signal to synchronize the tape message
with an automatic film transport
Frequency response - to 7000 cps
Bias and erase frequency - 40 kc
Signal to noise ratio - better than 40 db
Total wow and flutter - less than 0.3%
Rewind - 10:1 ratio
Recording level indicator - cathode ray "Magic Eye"
Reels - up to 711 in diameter
Start-stop - Instantaneous start and stop of the tape on this machine
by either a foot pedal or by push-to-talk microphone to permit faci-
lity in making unbroken recordings and in transcribing recorded ma-
terial from the tape
Power requirements - 115 volts, 60 cycles, 110 watts
Weight - approximately 35 pounds
2. Automatic film strip projector - this unit to be operated independently
as a push button controlled film strip projector or will accept the
synchronizing signals from the tape machine to provide a completely
automatic synchronizing audio-visual presentation.
3. Five pair of special high fidelity crystal headphones equipped with
split cords and three contact plugs. A roll of five parallel output
jacks on the machine to permit group listening to the output of channel
1 through both headphones or to the concurrent output of both channels
with one being heard in each ear through the split headphone arrangement.
Approved For Release 2009/03/27: CIA-RDP61-00017AO00100090006-7