Data of DRESSLER Katana-8K RF Linear Amplifier
DRESSLER Katana-8K covers all HF amateur bands from 1.8 MHz to 29.7 MHz
2 Power supply transformers
Plate voltage
Screen voltage, stabilized
Grid voltage, regulated
Filament
6000 VA & 1.5 VA
3450 V
340 V
- 77 V +/- 12 V
27 V / 7.4 A
Input SWR, 160 m – 10 m
< 1 : 1.35
Gain (1.8 – 29.7 MHz)
19.0 dB
Output with:
10 W Input:
20 W Input:
30 W Input:
40 W Input:
50 W Input:
60 W Input:
70 W Input:
80 W Input:
90 W Input:
100 W Input:
800 W
1600 W
2400 W
3200 W
4000 W
4800 W
5600 W
6400 W
7200 W
8000 W
Input: SSB Signal:
20% of full 1.5 KHz Modulation
on / off Ratio 1:3, Interruptions: 30 Hz
Bird Power Meter, Model 43, PEP
There is absolute no time limit for a carrier output power of 3700 W
Harmonic output
Intermodulation distortion
Tube
50 dB below rated output
37 dB or better
Two Svetlana GU-78b
Input network:
50 Ohm, 200 W HF Resistor, 5 pol. Chebychev Low Pass Filter
Output network:
Inductor 24 uH, Caps: 250 pF var. + 220 pF fixed & 1000 pF var. + 1 nF fixed
Metering: Output, SWR, Plate current, Plate voltage, Screen & Grid current
Computer control of plate current (every 5 msec), SWR and all switching functions:
No relais switching under power conditions
Soft start inrush
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
548w x 156.5h x 498d mm³
47.5 Kg
6980 €, Tuning Aid 100 €
