Re: New JJ tesla 2A3-40

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Posted by PakProtector [ 152.163.100.134 ] on March 11, 2006 at 18:05:06:

In Reply to: Re: New JJ tesla 2A3-40 posted by Norris Wilson on March 11, 2006 at 16:41:34:

Hey-Hey!!!,
While I like the idea of a hot-rod 2A3, it seems to me there must be adjustments made to match the original so well.

What if it had a 4A filament instead, and maybe 30% more gm? Let's keep mu the same, or perhaps raise it to 5 or so. R_p would be a bit lower and it would probably have a bit more grid-anode capacitance...oh well, nothing is free.

For me, that's just too expensive a tube to play with. Sovtek 2A3 is maybe 75% of that one, at less than a third the price( and I know that they sound good ).
cheers,
Douglas


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