Heathkit VHF-1 Seneca VHF Ham Transmitter Power input: 6 meters, 140 w CW, 120 watts phone (peak) 2 meters, 110 watts CW; 95 watts phone (peak) Output impedance: 50 to 72 ohm (non-reactive) Output coupling: Adjustable link (coaxial connector). Operation: crystal, VFO, CW, phone 2 6146's in final amplifier Frequency coverage: 48.9 to 54 mc, 143.7 to 148.3 mc Audio: screen modulated, controlled carrier Power requirements: 117 V AC, 50-60 cycles; Standby (phone, CW) 120 watts full load (phone, CW) 400 watts (intermittent) Dimensions: 16 5/8" W x 10 1/8" H x 10" D