GS-35B 50MHz Amplifier
by
VK8RH
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Top View

 

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Bottom View

 

GS-35B grid mount
Detail of grid mount

 

cathode cooling
Cathode cooling fan installation

 

6M PA rear panel
Rear Panel

  More data will be added as it is received. 20 Mar 04

Performance parameters - stopped at 1000W output since power meter was calibrated only to that level.  Grid bias is -34VDC and Ia(0) is about 80mA.

Watts Drive Watts Out Gain (ratio) Gain (dB) Ig (mA) Ia (mA) Ia/Ig Ug (KV)
5 150 30 14.8 20 150 0.13 3.45
10 280 28 14.5 40 210 0.19 3.42
15 400 27 14.3 60 280 0.21 3.4
20 500 25 14.0 80 340 0.24 3.39
25 600 24 13.8 90 380 0.24 3.37
30 700 23 13.7 115 440 0.26 3.37
35 800 23 13.6 150 500 0.30 3.36
50 900 18 12.6 180 520 0.35 3.34
60 1000 17 12.2 220 600 0.37 3.32

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This Page Last Updated: 20 March 2004
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