Heathkit TX-1 Transmitter

Power input: 150 w PHONE - 180 w CW

Output impedance: 50-72 ohms (non-reactive)

Output coupling: Pi Network (coaxial)

Operation: Crystal-VFO, CW-SSB-PHONE (time sequence keying, SSB requires external adapter)

Band coverage: 80, 40, 20, 15, 10

Audio output: 100 watts at 300-3000 cycle (Adjustable low-level speeh clipping; 500 ohm output available)

Tubes: 2 selenium rectifiers
       1 5V4 low voltage rectifier
       2 5R4GY HV rectifier
       1 OA2 voltage regulator
       2 OB2 voltage regulators
       1 12AX7 speech amplifier
       1 12AU7 clipper amplifier
       1 6AL5 clipper
       1 12BY7 audio driver
       2 6CA7/EL34 modulator
       1 6AU6 VFO
       1 6CL6 crystal oscillator-buffer
       1 5763 driver
       2 6146 power amplifier
       1 6AQ5 clamp

Power: 115 V AC, 50-60 cycles
       Standby (AM, CW): 150 watts, (SSB): 230 watts, CW: 420 watts (intermittent)
       Phone: 500 watts (peak), SSB: 500 watts (peak)

Cabinet size: 19½" w x 11 5/8" h x 16" d