400 Series 1 Build

Pffft. Child’s play compared to watch repair.

And then there’s the ladies movements to help humble those who are “comfortable” working on men’s movements.
 
My dad was a sailor, truck driver and mechanic.

Yes, I’ve heard that one before too…
 
I noticed on the relay board that R6 and C3 are not populated. This snubber protects the chip from the inductive kick of the relay coil. The values are .1uf and 100 ohm. The alternative is a clamp diode (1N4004) across the coil on the back side of the board with the cathode on pin 8. The snubber or diode is necessary for proper operation.

These days I use the diode and install an LED and current limiting resistor in place of the snubber. The LED lights when the relay pulls in. The clad will eventually get changed when I run out of the existing stock.
I did the same, and put the green Led on the front panel, as the "on indicator" on all my phase amps. Nice to know the delay is working properly, and the amp is healthy.
 
Burn-in testing completed and ready for transfer to new owner.

Streaming Tidal from Roon core directly into Benchmark DAC3 L and analog out to amp.

Digital streaming has come a long way in sound quality…

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Hell, just refinance the house...or rob the damn bank:cool::cool::cool:

I got the speakers...but am in the same boat regarding the preamp...and I want to get my turntable and vinyl back from ex #1 but not sure that is going to happen.

Hey, getting back to something you said a while back about the WOPL700 actually being capable of 500w/ch (Joe, comment please) due to the upgraded output transistors. The electronics might be able to pump it thru but the power supply is only good for like 960...970 watts transformer rating (too lazy to go look) so you might be able to go almost 500/ch rms but you got NO headroom...I guess if you piled a bunch of big-ass electrolytics in the power supply it would be better but still you need a bigger transformer to really let the old gal stretch her legs and that is why Joe has spec'd the much larger transformer for the One
What is the bigger power transformer and what is the ONE @ Gepetto
 
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