Tube DIY Asylum

RE: One other question on the ST-70

69.248.35.17

In Reply to: RE: One other question on the ST-70 posted by Paully on June 20, 2008 at 11:03:56

Dude,

IMO, switching to 220 nF. 716P ODs as the coupling caps. makes considerable sense. If you roll infrasonic noise off at the amp's I/Ps along with the coupling cap. change, you greatly reduce the chance of the O/P trafo cores saturating. An amp experiencing O/P trafo core saturation sounds very bad.

Soviet surplus PIO parts are a good choice for the high pass duty, as they are outside the global NFB loop. There's no homogenization here. :>)

Eli D.

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