Data of DRESSLER Katana-3K RF Linear Amplifier
| Frequency bands | all HF amateur bands | 1.8 MHz to 29.7 MHz | ||
| Power supply | 2 power supply transformers | 3100 VA & 1.5 VA | ||
| Plate voltage | 3450 | V | at full output power | |
| Screen voltage | 330 | V | stabilized | |
| Grid voltage | - 47 | V +/- 10 V | regulated | |
| Filament | 12.5 | V / 7.2 A | ||
| Input SWR | 160 | m – 10 m | < 1.08 : 1 ! | |
| Gain | (1.8 – 29.7 MHz) | 17.0 dB | ||
| Amplification | Input power | Output power | ||
| Measured with a Bird Power Meter, Model 43, PEP. | 10 W 20 W 30 W 40 W 50 W 60 W |
500 W 1000 W 1500 W 2000 W 2500 W 3000 W |
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| Input SSB Signal | 20% of full 1.5 KHz Modulation on / off Ratio 1:4, Interruptions: 30 Hz |
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| Output limited by Software | RTTY / CW / SSB: 1800 W / 2500 W / 3300 W | |||
| Harmonic Output | 50 dB below rated output | |||
| IMD | - 43 dB @ 25% power output - 37 dB @ 50% power output - 33 dB @ 100% power output |
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| Tube | Svetlana GU-43b | |||
| Input network | 50 Ohm, 200 W HF Resistor, 5 pol. Chebychev Low Pass Filter |
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| Output network | Inductor: 24 uH, Caps: 250 pF var. + 470 pF fixed / 1000 pF var. + 440 pF fixed / 2.2 nF fixed | |||
| Computer control | Plate current (every 5 msec), SWR, all switching functions, no relais switching under power conditions, soft start inrush, 180 sec delay time for full power, 2 speed turbine 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, SWR, Plate current, Plate voltage, Screen & Grid current / voltage |
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| Housing | High quality black eloxial aluminia | |||
| Dimension | 420w x 155h x 480d mm³ | |||
| Weight | 32 kg | |||
| Price | 3680 €optional SSB Tuning Aid 120 € | |||
