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In Reply to: RE: Riddle me this posted by Rod M on July 10, 2021 at 11:31:42:
As posted in the original Dynaco ST-70 manual, KT-66 was an acceptable "emergency" substitute for the EL-34, but the KT-66 is a more robust tube, voltage wise, than the average 6L6.
If you're really curious, you might run the idea by Jim McShane. He handles the Gold Lion KT-66, of course, but he also has some tilted bottle 6L6GC-STR Tung-Sol reissues on sale at the moment for the bargain price of $35.50 per pair. If Jim thinks they'll handle the ST-70s 410 VDC on the plates, they might be interesting to experiment with.
If he gives you the green light, and you don't care for them in your ST-70, they'd be good back-ups for your Mac.
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Follow Ups
- That's probably wise - 1973shovel 09:14:43 07/11/21 (0)