Note
CQ, Feb 1965, p. 100.
QST, May 1965, p. 168.
QST, Jul 1966, p. 161. List of all models.
QST, Dec 1967, p. 158. List of models.
QST, Apr 1969, p. 141. List of new models.
Popular Electronics, Jan 1969, p. 24. (Model SU add-on squelch)
The Tunaverter from Tompkins Radio Products was a tunable converter, just as its name implies, but it could also be crystal-controlled on a fixed frequency. The output frequency of the Tunaverter was 1500 kHz. Tompkins made them for the 160-10 meter amateur bands as well as for other services. The Tunaverter was power by an internal 9 volt battery.
References
Brief description. Popular Electronics, Apr 1968, p. 22.
