Note
QST, Mar 1955, p. 80.
QST, Mar 1955, p. 111.
QST, Apr 1955, p. 3.
QST, Jul 1955, p. 2. (details)
QST, Jul 1956, p 2. (optional gear reduction tuning knob)
QST, Sep 1957, p. 2. (stability, with charts)
QST, Feb 1960, p. 141.
References
A converter for general coverage. CQ, Sep 1962, p. 44.
A wideband filter. CQ, Jan 1964, p. 50.
Additional improvements. CQ, Sep 1966, p. 37.
Adding a product detector. CQ, Oct 1966, p. 29.
