Note
QST, Dec 1953, pp. 82–83.
QST, Feb 1954, inside front cover.
Allied Radio catalog 1955 (copyright 1954), p. 191.
QST, Jan 1955, p. 136. (DB-23A)
QST, Oct 1962, p. 149.
CQ, Nov 1962, p. 161.
The DB-23 receiver preamp had a minimum gain of 20 dB on the 80–10 meter ham bands. It also assisted in image rejection. The circuit used three 6J6 twin triodes working as neutralized push-pull stages. A front-panel knob selected the desired band and a peaking control fine-tuned the preamp.
References
Brief description. Radio News, May 1953, p. 101.
