[Amps] !44Mhz Gi7B amp problems continued

[Sean Williams]

Hi All,

I have just finished this amp, built to a YU1AW design.

It used to oscillate at 480 megs, this has now been cured, however, it 
no longer produces anywhere near the power it used to - Previously I 
could achieve 800 watts for about 40 watts of drive.

Now I struggle to get 150 Watts before the grid current shoots through 
the roof - anode current never rises above 300 ma at 2.2kv.

I have tried a different pair of tubes, and still get the same results.

Any ideas??

Sean
M1ECY