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In Reply to: Why don't 12AX7 heaters in Eico HF-85 preamp glow? posted by Byrd69 on April 30, 2023 at 07:05:39:
According to the owners manual all the 12ax7s are supplied with 6.3 vac (full heater voltage) and they should all be lite up normally. You might want someone with a volt meter to check it.
Tre'
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Follow Ups
- RE: Why don't 12AX7 heaters in Eico HF-85 preamp glow? - Tre' 10:28:27 04/30/23 (5)
- Oops...Eico on my mind - a correction - Byrd69 11:27:01 04/30/23 (4)
- The PAS runs the 12ax7s on low DC heater voltage (11vdc) and ... - Tre' 12:15:26 04/30/23 (2)
- RE: The PAS runs the 12ax7s on low DC heater voltage (11vdc) and ... - Byrd69 12:43:52 04/30/23 (1)
- You're welcome nt - Tre' 13:36:20 04/30/23 (0)
- RE: Oops...Eico on my mind - a correction - Jonesy 12:07:18 04/30/23 (0)