Thread: Tonfunk T 500 help
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Old 05-18-2008, 04:47 PM
Tom Bavis's Avatar
Tom Bavis Tom Bavis is offline
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Join Date: Jun 2002
Location: Macedon NY
Posts: 371
I don't find a Tonfunk T 500 at radiomuseum.org...

6AJ8 is the same as the ECH81... there should only be one of these (AM converter tube). EF89 has a US equivalent - 6DA6 - but it's not common.
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