Note
QST, Aug 1963. p. 145.
QST, Dec 1963, inside back cover.
CQ, Jan 1966, p. 13. (This is probably a close out sale. Osterman lists 1965 as the last year of manufacture.)
The six-tube NC-121 was a single-conversion set covering 0.55–30 MHz. It had a built-in 5 inch speaker and a Q-Multiplier. The NC-121 had separate detectors for AM and CW/SSB. The main tuning dial was directly calibrated and band spread used a 0–100 logging scale.
References
Brief description. Popular Electronics, Feb 1964, p. 25.
