Note
QST, Jan 1974, p. 146.
QST, Jun 1975, p. 148.
QST, Mar 1976, p. 108.
QST, Dec 1976, p. 123. (best photo)
QST, Nov 1977, p. 169.
QST, Feb 1980, p. 131.
QST, Apr 1981, p. 181.
QST, Feb 1982, p. 187.
The Palomar RX Noise Bridge was a broad-band noise source that was used to determine the resonant frequency of an antenna or its resistance and reactance. It connected in the feedline between the antenna and receiver. Exact dating of the different colored units has not yet been determined.
