12B4 sub

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Posted by PakProtector [ 205.188.117.72 ] on March 18, 2006 at 15:56:58:

In Reply to: Anyone use 6S45P with 12B4A concertina for PP 7591A or 6L6? posted by Norris Wilson on February 28, 2006 at 13:20:00:

Hey-hey!!!,
One could try the 6C19Pi in place of the 12B4. Mu is about 2.5, and R_p is ~500R. So try the 6C45>6C19 and use a 3-4k resistor on the 6C19.

Either way, the limit is still a quarter of B+ for swing. We just get a bit closer to that limit with the lower plate Z of the 6C19.
cheers,
Douglas


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