This was a short term message synchronizer for use with non-synchronous on-line teletype security equipment, such as AFSM 9 and one-time tape equipments. It was originally released as HW-5(D) and AFSZ D7305.
The quantities shown below were issued to the following services for service trails as authorized in a former SECRET document dated June 15, 1955.
US Army - 10
USN - 6
USAF - None. The Air Force had no requirement for this machine.
NSA - 8 ( Four were slated for service trials in the UK)
Unit cost in 1955 - $ 700
Does anyone have more info on this device?
Contributors and Credits:
Back To Menu Page