>
>> Would someone be kind enough provide me with a source for a replacment 1mh
>> RF choke for the grid of a SB-220. The only values I am able to locate
>> are Millen 200 and 300 ma 1mh chokes. What value should I look for as a
>> replacement?
>
>Richard,
>
>Ground the grids at each grid pin directly to the chassis with a lug
>at each grid pin.
>
>Be sure to remove the tubes before drilling any holes.
>
>The amp will work better and be more stable with the grids directly
>grounded.
For the curious, to see if this is really true, measure grid resonance
both ways.
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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