08-18-2024, 05:47 PM
12AT7 vs 12DT8 some books show they are a sub for each other WRONG! Pin nine on the 12DT8 goes to ground a internal shield. Pin nine on the 12AT7 is a center tap for the heater. I learned the hard way. David
Tinkering on the Westinghouse H-777N7
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Tinkering on the Westinghouse H-777N7 - by Jayce - 08-18-2024, 01:41 PM
RE: Tinkering on the Westinghouse H-777N7 - by Paul Philco322 - 08-18-2024, 05:17 PM
RE: Tinkering on the Westinghouse H-777N7 - by David - 08-18-2024, 05:47 PM
RE: Tinkering on the Westinghouse H-777N7 - by Paul Philco322 - 08-18-2024, 06:19 PM
RE: Tinkering on the Westinghouse H-777N7 - by Jayce - 08-18-2024, 06:25 PM
RE: Tinkering on the Westinghouse H-777N7 - by Jayce - 08-18-2024, 06:31 PM
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