Data of DRESSLER Tsunami-20K RF Linear Amplifier
DRESSLER Tsunami-20K covers all HF amateur bands from 1.8 MHz to 29.7 MHz
3 Power supply transformers
Plate voltage at full output power
Screen voltage, stabilized
Grid voltage, regulated
Filament
16000 VA, 1800 VA & 1.5 VA
8000 V
1300 V
- 280 V +/- 25 V
7.5 V / 75 A
Input SWR, 160 m – 20 m
Input SWR, 17 m – 10 m
< 1 : 1.3
< 1 : 1.6
Gain (1.8 – 29.7 MHz)
21.8 dB
Output with:
10 W Input:
20 W Input:
40 W Input:
60 W Input:
80 W Input:
100 W Input:
120 W Input:
140 W Input:
1.5 KW
3.0 KW
6.0 KW
9.0 KW
12.0 KW
15.0 KW
18.0 KW
21.0 KW
Input: SSB Signal:
20% of full 1.5 KHz Modulation
on / off Ratio 1:5, Interruptions: 30 Hz
Bird Power Meter, Model 43, PEP
There is absolute no time limit for a carrier output power of 10 KW
Harmonic output
Intermodulation distortion
Tube
50 dB below rated output
34 dB or better
Eimac 4CX10000D
Input network:
1:9 Transformation, 450 Ohm, 500 W HF Resistor, Tube Input Reactance Compensation & Neutralization for each Band, 11 pol. bandswitch, two levels
Output network:
Roller inductor 24 uH, Vacuum Caps: 500 pF var. 15 KV + 2500 pF var. 5 KV
Metering: Output, SWR, Plate current, Plate voltage, Screen & Grid current
Computer control of all switching functions:
No relais switching under power conditions
Soft start inrush, 10 sec delay time for full power
Turbine blower with 2 speeds
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
The finish is of high quality black eloxial aluminia
Dimension
Weight
Price
540w x 610h x 720d mm³
185 Kg
18.980 €
