Note
Millen catalog "Communications Receivers and Transmitters" 1947-1948
One of two receivers designed by Millen in 1947, the other being the more expensive and elaborate 91501. Both were developed into prototypes but never sold.
Uses a "sliding carriage" coil switching scheme, and 12 inch "full vision" dial with bands that rotate into position. A precision detent on the general coverage tuning capacitor results in positive resetability on the the band spread ranges.
Optional 91001 12 inch speaker in matching cabinet.
–Tuning gear ratio:
General coverage dial: 13:1
Band spread dial– 22:1
–Coverage from 550 kHz to 31.5 MHz in 5 bands
–Band spread for 80 40, 20, 15, 11, and 10 meters
–Built-in crystal calibrator
–Double conversion
–Crystal controlled 2nd IF
–Selectivity from 200 Hz to 5 kHz in 5 steps
–Crystal phasing control
–Oscillator compensated for frequency drift
–6AK5 tuned RF ampifier
–Two high gain 455 kHz IF amplifiers plus second converter
–ANL
–4 watt audio amplifier
–8 and 500Ω audio outputs
–Input to audio amplifier available on rear panel
–Tone control
–Antenna trimmer on front panel
–Receiver may be rack mounted
Power: 115 VAC, 50/60 Hz, 85 watts
Tubes: (1) 6AK5, (2) 6BE6, (4) 6BA6, (1) 6AT6, (1) 6V6, (1) 5Y3, (1) VR-150 (3) 1N34 diodes
