Note
QST, Jul 1956, p. 93.
Walter Ashe catalog 1957 (probably issued in 1956), p. 7.
Allied Radio catalog 1958 (copyright 1957), p. 267.
The HQ-150 offered features devoted to selectivity and single-signal reception. The 13-tube receiver had both a crystal filter and a Q-multiplier in its 455 kHz IF. The HQ-150 tuned from .54 to 30 MHz in six bands.