In Reply to: RE: How about a grid choke that has multiple taps... posted by sony6060 on February 2, 2017 at 10:53:04:
Transformer volume controls have been around for many years now. If you do an internet search, you will find many examples for diy. They are pricey though. I purchased a Stevens and Billington tvc years ago and installed it in my 26 preamp.
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Follow Ups
- Transformer Volume Control (TVC) - BenM 11:03:14 02/02/17 (1)
- Autoformer Volume Control (AVC) - Tre' 11:16:13 02/02/17 (0)