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Titan Model 425 Linear Amplifier
Specifications
- Band Coverage: 1.8 - 2.0, 3.2 - 4.7, 6.5 - 8.5, 13.4 - 19.6, 17.6 - 23.0 MHz, With 10 meter modification, 17.6 - 26.5, 20.6 - 31 MHz.
- Drive Power: 65 to 80 watts typical for 1500 watts output.
- Efficiency: 50 - 65%, depending on frequency, drive level, and load.
- Distortion: -35 dB from 1 KW RF output level.
- Harmonics: -50 dB typical.
- Input/Output Impedances: 50 Ohms.
- CW Break-in: QSK with vacuum relay. RF sensing circuit prevents keying or un-keying if 10 mW of RF present on the RF drive line. Switching time less than 8 ms.
- Tube Complement: Two Eimac 3CX800A7 ceramic, external anode triodes in a grounded grid circuit. Plate dissipation, 1600 watts.
- Plate Voltage: HI = 2400 Vdc, LO = 1800 Vdc, no load.
- Cooling: Ducted forced air, vertical exhaust, using a two speed centrifugal blower.
- Metering: Full time plate current. Switch selected plate voltage, grid current, forward power or reflected power. Peak power is indicated on a 10 element LED bargraph display. The first nine elements are amber - the tenth LED is red and indicates 1500 watts output.
- Front Panel Status Indicators: Standby, operator, transmit.
- Primary Power: 220 - 250 VAC @ 15 A, 110 - 125 VAC @ 30 A, 50/60 Hz. For full power operation, 220 - 250 VAC strongly recommended.
- Circuit Protection: Primary line fuses. Plate transformer primary interlock and high voltage shorting bar.
- Front Panel Controls: Power on/off, standby/operate, control mode select (QSK - PTT/VOX), plate TUNE and LOAD, band switch, meter switch.
- Tune and Load Controls: 6:1 vernier drives with calibrated dial skirts.
- Construction: Aluminum chassis, front and rear panels, interior partitions and top and bottom covers.
- Size: HWD 8.25" x 15.25" x 18.5" (20.3 x 38.7 x 46.9 cm)
- Weight: 47 lbs (21.3 kg)