Note
QST, Sep 1951, p. 92. (2BR and 3BR)
QST, May 1952, p. 132. (1BR)
QST, Apr, 1952, p. 103.
QST, Jun, 1952, p. 119.
Allied Radio catalog 1953 (copyright 1952)
QST, Feb 1954, p. 87. (inside view)
QST, Apr 1954, p. 95. (5BRF) (a month or two earier than this, this unit is designed specifically for use with the FTR)
QST, Apr 1954, p. 95. (5BRLN) (designed for use with broadcast receiver)
QST, Apr 1954, p. 95. (5BR-1) (same as LN except with noise limiter)
QST, Jun 1952, p. 111. (An "LN" version (2BRLN, for example) does not include the noise limiter.)
QST, Mar 1953, p. 94. (5BR)
QST, Dec 1953, p. 107. (5BR-1)
By June, 1954, the 5BR series was the only one still available.
Allied Radio catalog 1955 (copyright 1954), p. 194. (5BRF)
Allied Radio catalog 1956 (copyright 1955), p. 201.
Walter Ashe catalog 1957 (probably issued in 1956), p. 7. (5BR-2)
QST, Apr 1957, p. 127. (5BR-2)
Allied Radio catalog 1958 (copyright 1957), p. 273.
Allied Radio catalog 1959 (issued 1958), p. 382.
QST, Apr 1959, p. 108. (maybe NOS)
The 2-BR was available in 10/40, 40/75 and 10/75 combinations. It used five tubes. The main tuning capacitor gang-tuned the RF amp, oscillator, and mixer stages. Its IF amp had four tuned circuits and an output on 1525 kHz. An automatic noise limiter was built in.
Morrow’s 2BR-2 was an updated version of the older 2BR mobile converter. It was available in the same choice of 10/40, 40/75, and 10/75 meter configurations.The price of the newer version increased by $5.00.
The 5BR mobile converter had the same basic design and feature set as the 2BR but covered 80, 40, 20, 15, and 10 meters. Morrow gave the 5BR-2 mobile converter a facelift to more closely match the style of the MBR-5/MB560 pair, adding “-2” to the model name. It remained the same electrically.
