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21V redressé filtré, mais 4.27V en sortie de chacun des LT1185
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(avant décapsulage des bouteilles)
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the bypass caps for the buffers don't have to be changed as the old ones were 25v I think. After the regulators the voltage should be 22. So 25 is fine. The .047 cap can be 25V as well, only 19 volt across it.
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Multisync:
Excellent answer to the question, and some excellent info on the "overclocked" LPUHP.
Getting the additional voltage headroom is very beneficial, especially with an 8 ohm load.
I might give that a try myself and see how it works.
Brunk:
As Multisync mentioned, you can use 18V secondaries if you change the caps before the reg, but I really don't suggest it, especially if you haven't bought the transformers yet.
Go with 15V secondaries, and use the 25V caps. You get more capacitance, and put less stress on the regulators. There is absolutely no benefit to 18V secondaries.
Everyone else:
It should be noted (in case it wasn't already obvious) that the above mentioned rail voltage increase done by Multisync can only be done if you swap out the LME49990 for a higher voltage op-amp like the suggested 49870.
If you try this with the stock op-amp, it probably won't survive for very long, and could take the whole amp and speaker with it when it fails.
La configuration dans mon profil
La configuration dans mon profil
La configuration dans mon profil
La configuration dans mon profil
La configuration dans mon profil
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