Deutsche Version - German Version German Version

DC9DZ: Project Tsunami 25K – Power Amplifier (PA) using 4CX10000D

Data of DRESSLER Tsunami-25K-AT RF Linear Amplifier

Frequency bands all HF amateur bands 1.8 MHz to 29.7 MHz
Power supply 3 power supply transformers 12500 VA, 1800 VA & 1.5 VA
Plate voltage 8500 V at full output power
Screen voltage 1300 V stabilized
Grid voltage - 340 V +/- 25 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
* with internal Tuner from TX or with additional Automatic Tuner SWR 17 m - 10 m: 1 : 1
Gain (1.8 – 29.7 MHz) 21.4 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
  1.25 KW
2.5 KW
5.0 KW
7.5 KW
10.0 KW
12.5 KW
15.0 KW
17.5 KW
20.0 KW
22.5 KW
25.0 KW
 
Input SSB Signal 10% of full 1.5 KHz Modulation
on / off Ratio 1:9, Interruptions: 30 Hz
Output limited by Software RTTY / CW / SSB:   8 KW / 12 KW / 28 KW
Harmonic Output 50 dB below rated output
IMD 33 dB or better
Tube Eimac 4CX10000D
Input network 1:9 Transformation, 450 Ohm, 250 W HF Resistor, Tube Input Reactance Compensation & Neutralization for each Band
Output network Roller inductor 22 uH, Variable Caps: 250 pF / 9 KV + 330 pF fixed + 1000 pF / 3.5 KV + 1330 pF fixed
Computer control Plate current (every 5 msec), SWR, all switching functions,
no relais switching under power conditions, soft start inrush, 10 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.
Auto Tune With CI-V (ICOM) interface (or similiar) from the transceiver: Complete auto tune on all HF amateur bands. Normal time for changing frequency: 1 second; Changing band: 2–4 seconds
Metering Output, SWR, Plate current, Plate voltage, Screen & Grid current / voltage
Line Support 3 PHS 400 V / 20 A
Housing High quality black eloxial aluminia
Dimension 489w x 556h x 548d mm³
Weight 118 kg
Price Auto Tune by CI-V (ICOM) Interface
Remote Control Unit with optical cable 30m
SSB Tuning Aid
27880 €
3180 €
120 €