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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: Floating Paraphase phase inverter posted by Tre' on April 24, 2021 at 17:52:50:
...R113 and R114 form a voltage divider whose reduction ratio more-or-less matches the gain of the lower section of the 6EU7. Effective gain is a function of resistor values and tube gain. Divider values are chosen to produce an effective gain of approx -1. A true floating paraphase employs effectively nearly 100% inverse feedback for the lower section so the gain here is also approx -1.
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Follow Ups
- Pretty sure that's a plain ol paraphase inverter, not "floating"... - Steve O 19:06:58 04/24/21 (1)
- You're right. not floating. I looked at Al's schematic wrong. nt - Tre' 19:14:25 04/24/21 (0)
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