In Reply to: RE: A very bad idea posted by Tre' on March 15, 2013 at 16:06:05:
Yes! Tre, my post does need correcting.
What I meant to say, and should have clarified, is that a D.C. amp doesn't use coupling caps in the main signal path, which is true.
Caps are used in Power Supply functions, for cathode bypassing, and as filters in power supplies located as local nodes within the D.C. amp's layout-- power usage points all have local power supply development that uses capacitors.
That should cover all 4 points you mentioned, you are correct in all of them.
Caps are the "poor boy" in audio, performance wise. For this reason, we can at least eliminate them as main signal path couplers.
We can and should use the best caps we can find, and when those-- no matter how good, are not nearly good enough-- we are reduced to cap bypassing or buying super-expensive caps (Duelund CAST)in order to degrade the signal's bandwidth, dynamics, and transfer efficiency as little as we can arrange.
That is admittedly not perfect-- as no capacitor is. As always, you do what you can!
Thanks, Tre, for the heads-up. Consider my post corrected.
---Dennis---
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Follow Ups
- RE: A very bad idea - tube wrangler 18:22:32 03/15/13 (8)
- RE: A very bad idea - Tre' 18:48:24 03/15/13 (1)
- RE: A very bad idea - tube wrangler 09:04:17 03/16/13 (0)
- RE: A very bad idea - op48no1 18:40:14 03/15/13 (5)
- RE: A very bad idea - tube wrangler 09:06:24 03/16/13 (0)
- I agree with your opinion - Ray Moth 22:29:22 03/15/13 (3)
- RE: I agree with your opinion - tube wrangler 09:08:24 03/16/13 (2)
- RE: I agree with your opinion - Ray Moth 19:00:09 03/16/13 (1)
- RE: I agree with your opinion - op48no1 20:30:16 03/16/13 (0)