Production Year 1969 - 1972 at $229.50 The Hammarlund HQ-200 is a general coverage receiver that tunes from 540kHz to 30MHz in four band ranges. Like many of these receivers the amateur bands are all Band Spread calibrated. A BFO(Beat Frequency Oscillator) facilitates SSB and CW tuning. The Q-multiplier operates independently of the BFO. Other enhancements include an Antenna Trimmer, Noise Limiter switch, S-Meter, Stand-by knob with AM/CW and a AVC On/Off switch. There is a 3.2 ohm speaker terminals and a headphone jack on the rear panel. The tubes and their functions are as follows, 6BZ6 = RF Amplifier, 6BE6 = Mixer, 6C4 = HF Oscillator, 6BA6 = 1st IF Amplifier, 6BA6 = 2nd IF Amplifier, 6BE6 = Product Detector, 12AX7 = 1st AM Amplifier & Q Multiplier, 6AQ5 = Audio Power Output, 1N34A diode = AM Detector. The Voltage Regulator is a Zener diode. The Rectifier is a CER72C and the Noise Limiter uses a 1N541A. The radio weighs in at 22 pounds. The suggested optional speaker is the Hammarlund S-100. |