Heathkit VX-l Electronic Voice Control Eliminate hand switching with this convenient kit. Switch from receiver to transmitter by merely talking into your microphone. Sensitivity controls allow adjustment to all conditions. Power supply is built in and terminal strip on the rear of the chassis accommodates receiver and speaker connections and also a 117 volt antenna relay. Switched Circuits No Voltage Output: 1-13 amperes; 1-5 amperes Switched Circuit with Voltage Output: 1-117 volts AC at 5 amperes Tubes: 1 - 12AX7 speech amplifier 1 - 12AT7 audio driver and anti-trip amplifier 1 - 6AL5 bias voltage rectifier 1 - 12BY7 relay switch tube Power Requirements: 117 volts AC, 50-60 cycles Cabinet Size: 7 3/8" w x 4 5/8" h x 4" d Shpg. Wt. 5 lbs. $23.95 (Data Collected and Verified by KB9JJA 12-4-1997)