Data of DRESSLER Katana-20K RF Linear Amplifier
| Frequency bands | all HF amateur bands | 1.8 MHz to 29.7 MHz | ||
| Power supply | 2 power supply transformers | 12400 VA & 3 VA | ||
| Plate voltage | 7700 | V | at full output power | |
| Screen voltage | 1200 | V | stabilized | |
| Grid voltage | - 340 | V +/- 30 V | regulated | |
| Filament | 7.5 | V / 75 A | ||
| Input SWR | 160 30 20 17 12 10 |
m – 40 m m m m – 15 m m m |
< 1.2 : 1 < 1.3 : 1 < 1.5 : 1 < 2.0 : 1* < 2.5 : 1* < 3.5 : 1* @ 28.5 MHz |
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| * with internal Tuner from TX or with additional Automatic Tuner SWR 17 m - 10 m: 1 : 1 | ||||
| Gain | (1.8 – 29.7 MHz) | 20 dB | ||
| Amplification | Input power | Output power | ||
| Measured with a Bird Power Meter, 471200. | 10 W 20 W 40 W 60 W 80 W 100 W 120 W 140 W 160 W 180 W 200 W |
1.0 KW 2.0 KW 4.0 KW 6.0 KW 8.0 KW 10.0 KW 12.0 KW 14.0 KW 16.0 KW 18.0 KW 20.0 KW |
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| Input SSB Signal | 10% of full 1.5 KHz Modulation on / off Ratio 1:9, Interruptions: 30 Hz |
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| Output limited by Software | RTTY / CW / SSB: 7 KW / 13 KW / 25 KW | |||
| Harmonic Output | 50 dB below rated output | |||
| IMD | 32 dB or better | |||
| Tube | Eimac 4CX10000D | |||
| Input network | Reactance Compensation & Neutralization for each Band | |||
| Output network | Switched inductor 18 uH, Caps: 150 pF var. / 9.0 KV + 330 / 150 pF fixed + 1000pF var. / 3.5 KV + 680 pF fixed | |||
| Computer control | 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. | |||
| Metering | Output, SWR, Plate current, Plate voltage, Screen & Grid current / voltage, Electronic plate current fuse, Supply voltages | |||
| Line Support | One phase 230 V: 20 KW SSB: 32 A / 13 KW CW: 50 A / 7 KW RTTY: 50 A | |||
| Housing | High quality black eloxial aluminia | |||
| Dimension | 548w x 310h x 512d mm³ | |||
| Weight | 89 kg | |||
| Price | 15980 €optional SSB Tuning Aid 120 € | |||
