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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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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: Thanks for the Comments posted by Triode_Kingdom on March 1, 2015 at 21:22:07:
FWIW, I think your compensation method is as good as any from a frequency response POV and I have used it myself in the past.
I do have a technical bias against it due to the loading ratio the following stage's input imposes on the the driving tube. Reason being that the mechanism causing the rolloff is essentially high OP impedance, (as you know) hence too much load on the driving tube at HF and I don't think that's a good thing for high order distortion (elliptical load line). The partial saving grace is that bypassing HF will reduce the OP impedance at HF but I prefer to use tubes with low enough OP impedance to drive the next stage.
As Paul pointed out it depends on the tube you are driving and for that matter, the type of circuit and even its gain where local NFB is utilised.
Naz
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Follow Ups
- A late comment ... - Naz 03:20:46 03/02/15 (1)
- RE: A late comment ... - Triode_Kingdom 10:13:24 03/02/15 (0)
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