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RE: C3G Siemens

If you don't find a suitable replacement at a decent price, maybe consider replacing that socket and using a different pentode. 9-pin miniatures are likely to be much less microphonic, and some are very inexpensive. You could buy extra and select the best ones by hand. The 6BH6 (6661) might work well in this application. The 5686 is another possibility, and depending on circuitry, the EF86, although its anode dissipation is more limited. If a larger form factor is really important to you, the glass 6SJ7GT (octal) might be a reasonable option. Would need to compare the curves to see which of these (or others) would bias most similarly to the C3G.

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  • RE: C3G Siemens - Triode_Kingdom 06:31:45 11/22/23 (0)


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