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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Thinking out loud about HF filament supplies posted by Lynn Olson on March 24, 2003 at 18:43:10:
Thinking some more about that RF transformer - it would nice if it had a center-tap, just like the usual 50/60Hz filament transformer. However, since it runs at 88.2/96 kHz, it can be *much* smaller than the usual AC transformer, and radiate a smaller magnetic field, as well. Maybe a tiny custom-designed toroid, perhaps?The wiring between the HF supply and DHT's can be either shielded twinax or maybe paired coax cables, similar to the cables used for component-video these days. That should retain balance and minimize RF emission into the rest of the circuit.
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Follow Ups
- Thoughts about HF filament transformer - Lynn Olson 03/24/0319:01:17 03/24/03 (1)
- Re: Thoughts about HF filament transformer - Tiny Daddy 20:30:01 03/24/03 (0)
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