Data of DRESSLER Aladin RF Linear Amplifier
Frequency bands | all HF amateur bands | 1.8 MHz to 29.7 MHz | ||
Power supply | 2 power supply transformers | 1600 VA & 1.5 VA | ||
Plate voltage | 2850 | V | at full output power | |
Screen voltage | 330 | V | stabilized | |
Grid voltage | - 49 | V +/- 10 V | regulated | |
Filament | 12.6 | V / 3.7 A | ||
Input SWR | 160 | m – 10 m | < 1.15 : 1 | |
Gain | (1.8 – 29.7 MHz) | 12.0 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 70 W 80 W |
170 W 340 W 510 W 680 W 850 W 1020 W 1180 W 1350 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: 800 W / 1000 W / 1400 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-74b | |||
Input network | 50 Ohm, 100 W HF Resistor, 5 pol. Chebychev Low Pass Filter |
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Output network | Inductor: 24 uH, Caps: 250 pF var. + 220 pF fixed / 5 KV & 1000 pF var. + 2 nF fixed / 5 KV | |||
Computer control | All switching functions, no relais switching under power conditions, soft start inrush, 150 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, Plate current, Plate voltage – no switching | |||
Housing | High quality black eloxial aluminia | |||
Dimension | 476w x 128h x 365d mm³ | |||
Weight | 20 kg | |||
Price | 2195 €, optional SSB Tuning Aid 120 € |