>I found a very clean SB200 I couldnt resist. While checking this amp out I
>found an interesting situation, High filament voltage. The SB200 has no
>separate filament transformer. It uses one transformer with three secondary
>windings. I have always put filament variacs in all my homebrew amps but
>they
>all had separate filament transformers. The filament voltage on this amp
>measures 7.25 volts vs the 6.3 volts required by the 572B'S. Considering
>the fact that this about 15% higher than specs, Im not comfortable leaving
>it
>that way. Is this a common problem with the SB200'S ?
>Any suggestions on how to correct the problem?
>
// Put R in series with side of the filament winding.
- R. L. Measures, 805.386.3734,AG6K, www.vcnet.com/measures.
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