Data of DRESSLER 6-Pack RF Linear Amplifier
| Frequency bands | all HF amateur bands | 1.8 MHz to 29.7 MHz | ||
| Power supply | 2 power supply transformers | 900 VA & 1.5 VA | ||
| Plate voltage | 1200 | V | at full output power | |
| Screen voltage | 225 | V | stabilized | |
| Grid voltage | - 47 | V +/- 10 V | regulated | |
| Filament | 12.5 | V / 5 A | ||
| Input SWR | 160 | m – 10 m | < 1.04 : 1 | |
| Gain | (1.8 – 29.7 MHz) | 11 dB | ||
| Amplification with 80 W SSB input | Frequency | Output power | ||
| Measured with a Bird Power Meter, Model 43, PEP | 1.9 MHz 3.5 MHz 7.0 MHz 10 MHz 14 MHz 18 MHz 21 MHz24 MHz29 MHz |
820 W 900 W 900 W 900 W 900 W 860 W 850 W 820 W 800 W |
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| Input SSB Signal | 25% of full 1.5 KHz Modulation on / off Ratio 1:3, Interruptions: 30 Hz |
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| Output limited by Software | RTTY / CW / SSB: 500 W / 750 W / 1000 W | |||
| Harmonic Output | 50 dB below rated output | |||
| IMD | 32 dB or better | |||
| Tubes | Six GU-50 | |||
| Input network | 50 Ohm, 200 W HF Resistor, 5 pol. Chebychev Low Pass Filter |
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| Output network | Inductor: 16 uH, Caps: 250 pF var. + 440 pF fixed / 1000 pF var. + 1 nF fixed | |||
| Computer control | Plate current (every 5 msec), SWR, all switching functions, no relais switching under power conditions, soft start inrush, 30 sec delay time for full power, 2 speed blower Well regulated screen and grid supply for +ve and -ve currents as well as current limiting to protect the tube and minimize the IMD. It is impossible to override the screen and grid dissipation at any working conditions. |
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| Metering | Output, Reflected Power, SWR, Plate current, Plate voltage, Screen & Grid current / voltage |
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| Housing | High quality black eloxial aluminia | |||
| Dimension | 476w x 133h x 365d mm³ | |||
| Weight | 16 kg | |||
| Price | 1398 €, optional SSB Tuning Aid 120 € | |||
