Note
QST, Oct 1962, inside back cover. "Delivery Dec 30"
QST, Mar 1963, inside back cover. (a few details)
QST, Jan 1964, inside back cover.
QST, Feb 1966, back cover.
The NCX-3 transceiver covered the 80, 40, and 20 meter bands. It had PTT or VOX operation on SSB and break-in on CW. It was lower sideband on 80 and 40, upper sideband on 20. Power input was 200 watts PEP on SSB, 180 watts on CW, and 100 watts on AM. National's tri-band transceiver used 18 tubes and 6 diodes. The final amplifier was a pair of 6GJ5s.
References
See National's comments: QST, Apr 1963, p. 105.
See National's comments: QST, Jul 1963, p. 119.
See National's comments: QST, Aug 1963, p. 111.
See National's comments: QST, Oct 1963, p. 131. ("thousands...")
See National's comments: QST, Nov 1963, p. 117.
