Note
Ham Radio, Jul 1971, p. 5.
Ham Radio, Aug 1971, p. 5. (now $229.00)
The TBS-2000 uses a transformerless 220 VAC power supply, with a zero bias grounded grid circuit. Because there is no transformer, the amp weight only 10 pounds. The amp can be run at 120 VAC by plugging in the optional TBS-110 accessory module, and can be operated mobile with the optional TBS-12 plug-in inverter. Features one-knob broadband tuning, and a mechanical relay for T/R switching.
Frequency coverage: 160–10 meters
Power input: 1600 watts PEP, 1000 watts CW
Drive power: 80–150 watts
Output impedance: 50 ohms
Tubes: (6) 31LQ6
Relative output indicator: light
Power supply regulation: 3% key down to idle
Filter capacitors: 550 uF total