Note
QST, Jul 1956, p. 87.
QST, Jan 1957, page 88.(General info)
Allied Radio catalog 1959 (issued 1958), p. 378.
QST, Jan 1959, p. 7.
Allied Radio catalog 1960 (copyright 1959), p. 396.
The GSB-1 SSB adapter was a filter-type slicer made to match TMC’s GPR-90 receiver. It could be used with other receivers with a 455 kHz IF. The GSB-1 converted the IF signal down to 17 kHz. It had an upper/lower side-band tuning range of +/– 3 kHz and AVC and noise-limiter circuits.
References
Review: QST, Mar 1957, page 44.
