Tweakers' Asylum

RE: "I'd be disinclined to do this but it may work ...I'd need to see the schematics"

74.179.139.66

1973shovel

In Reply to: RE: OPA-2604 voltage posted by zanash on June 09, 2008 at 23:49:43

I'm thinking that I'm going to leave well enough alone, since it's working, and there was an improvement. I don't have the schematic, and doubt it's available on such an obscure product.

It's not worth tracing out the circuit, and re-designing it. You can't polish a turd, as it were. Not that this JEC is a bad entry level phono preamp. Several guys over at the Vinyl Asylum thought it bettered a few more well known name-brand phono stages, which is why I bought it for a spare.

The main reason I was concerned about the voltage to the 2604 is when I searched the many postings here at the Tweaker's Asylum, most suggested the 2604 really needed higher voltage to perform well.

I did not use Schottky diodes in the psu, I used something I had on hand. Fast/soft recovery glass passivateds from Mouser. I had planned on getting the Schottky's on my next Digi-Key order, so thanks for the reminder.

I appreciate your reply. Thanks!

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