Our intent is to capture technical information from equipment that is no longer supported by the manufacturer in either service or information. As we scan in more information, we will be adding new information to these archives.
Alltronics Teletypewriter Model - A Receiving Converter - 1955
W5HFZ-W5RJG RTTY Converter - 1955
Mainline TT/L FSK Demodulator - 1964
Mark-Hold and Motor-Start for the W2JAV Demodulator - 1967
Mainline ST-3 Demodulator - 1970
DT-600 Demodulator- 1977
Mainline ST-6 Demodulator - 1970
TTL-2 Parts List Adobe .pdf format
RTTY-CW-800A Adobe .pdf format, Submitted by Glen, KE9QZ
The Mainline UT-2 - 1975
The Mainline UT-4 FIFO Buffer and XB-6 Clock- 1975
Mainline ST-5 Demodulator
Basic first release ST-5- 1970
Updated ST-5 - 1973
Autostart for the ST-5 - 1973
Frederick Electronics 1632 Demod 34 Pages in Adobe.pdf format File is 2.2 Megs - Takes time to download.