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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: It is a question of "too much gain" posted by Lou S on January 20, 2007 at 18:45:09:
You can't just up the closed loop gain from 1 to 5 in most practical circuits without all sort of ramifications.Poster was looking for a drop-in, not to re-engineer the amp. Doing this kind of stuff without a 'scope and knowing how to use it IS fraught with danger.
I have fixed quite a few amps where inexperienced tweakers have inserted parts with x20 GBW compared with the original and then wondered why it sounded bad. They could not see or hear the 60Mhz oscillation.
As I stated, Both the 627 and the 637 are the same part and have the same gain but different dominant pole compensation.
Cliff
First monolithic op-amp I used, the Fairchild uA709 in 1972(ish). Prior to that used Philbrick 2 tube and semi hybrid op-amp modules.
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Follow Ups
- A wierd way of looking at things! - clifff 13:19:59 01/21/07 (3)
- Straw man argument! - Lou S 13:27:59 01/21/07 (2)
- I give in. You live in your world. nt - clifff 13:54:37 01/21/07 (1)
- Specifications and all, yes I do. nt - Lou S 13:56:11 01/21/07 (0)
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