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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: pin 9 posted by Lew on November 10, 2013 at 13:43:35:
Not according to Duncan amps page. Pin 9 is a NC no connection although Sanders ma have used the postion to anchor another component.
12FQ7=6FQ7=6CG7, with different heater voltages. On a 6CG7, pin 9 is tied to the internal shield between triodes. FQ's eliminate the shield and pin 9 is left unconnected.
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Follow Ups
- RE: pin 9 - unclestu 14:25:31 11/10/13 (1)
- OK - Lew 14:58:34 11/10/13 (0)