SB 200

[Ray Friess]

I'd be interested in comments too.... I also have a ts 520 which I may
try to hook up to my
SB 200....    Maybe I can avoid the problems that Walter is having...
Ray  wa7itz


Walter wrote:

>I finally got my sb200 amp working. According to the manual, the grid current reading should be in the white range of the meter.  When I tune up on 20m, I turn down the drive of the exciter to keep in the grid range and the amp puts out about 450watts. When I try to do the same on 80m, I have to turn the drive down to about 30w into the amp to keep the grid reading in the white range which only produces about 100w out from the amp. When I tune up the exciter to full output, the sb200 powers up fine but the grid current reading is high, plate current is about 500 ma. I'm afraid it will blow if I use it on the air. The exciter is a ts 520 at 100w.
>Any ideas?
>Walt,  w3fnz
>
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