WIDE BAND PORTABLE TAPE RECORDER

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP81B00880R000100250002-4
• Release Decision: RIPPUB
• Original Classification: U
• Document Page Count: 2
• Document Creation Date: December 9, 2016
• Document Release Date: December 20, 1999
• Sequence Number: 2
• Publication Date: May 9, 1961
• Content Type: MF

Approved For Release 2000/09/01 : CIA-RDP8113041180R000100250002-4
11414-L-A-S-8-14-/-R-D
9 Nai 3.961
DOCUMENT NO.
MEIRMANIXR4 TM Record NO CHANGE IN CLASS. 31(
DECLASSIFIED
sumem : Vide Band Portable Tape Recorder CLASS. CHANGED TO: TS S
NEXT REVIEW DATE:
AUTH: HR 70-2
DATE: 3Jii4t REVIEWER: 037169
1. The Mecum Division of The 3AM Mfg. Co. are in process of
repaekaging their CM-100 series recorder in a portable version. This
machine lc good for either 1.0 or 1.2 Mc band peas at 120 /PS and car-
reapandirg band as at fractional speeds. It vi33. be suitable for
conversion to 1.6 me as soon as the new heads are perfected, probably
later this year.
2. The equirment viii be available for delivery during October
1961. Price mill be of the order of $22,500 for the 1/2 inch, 7 track
model and $350000 for the 1 inch, 14 track model.
? 3. Th e evument vulvae the Standard CM-100 top plate. It v111
provide for either 7 or 14 tracks of record-only rams fully equalized
playback in a high quality scope of one or two selected channels at one
time. It vill include provision for full remote operatiou plus local
operation at all 6 speeds. The built in square-wave calibrate provision,
which has proved invaluable in the CM series, will be Included. It will
be suitable for ambient temeeratures up to abcut 85? Centigrade, and,
with the addition of tbermostatically controlled shutters, for any for-
seeable law level of ambient temperature. With the currently available
14 Inch reale it will provide 12 minutes of record at 120 IPS, and with
15 inch reels which the deck will accomodate, up to 15 elentes at 120
IPS. Record times are appropriately multiplied at lower speeds. The
equipment will meet Navy splash-proof and shock and vibration tests.
The equipment ia being designed to function in aey position, vertical,
horizontal, and at various tilts. Although the equipment uses de drive
and hes a record bias oecillator RIF levels bave comfortably passed Beey
apecifications and no problems involving the current rackemnunted model
have been reported.
4. Exterwa power requirement will be less than one kilowatt ac
at from 30 to 500 cycles/second. It will be packaged in two bozos, tho
box containing the tape transport being from).* to 44 inches long, less
than 21 inches from side to side, and less than 14 inches deep, in the
142 inch, 7 track model weighing less than 200 Ibs, and le the one indh,
1 tracked:del, less than 250 Ibs. The power supply package will be less
than 14 inches long, of the sane vidth and depth, and weigh less than 60
to 70 Ibs. These dimeneiens were specifically designed to assure easy
passage through 25 inch circular Navy hatchee.
U-N-C-L-A-S-S-I-F-I-B-D
Approved For Release 2000/09/01 : CIA-RDP81600880R000100250002-4
Approved For ReIlle 2000/09/01 : CIA-RDP81BOOODR000100250002-4
U-N-C -L-A'S -S -I-F-I-E-D
5. This meraorend.ms is intended to alert; these concerned with ?
tbe d.esifga and modification of advanced. mebile collection syitems
the availability of mach more data recording capacity than has pre-
viously been available.
STATINTL
2
U-N-C-L-A-S-S-I-F-I-E-D
Approved For Release 2000/09/01 : CIA-RDP81600880R000100250002-4