400 Series 1 Build

[J!m]

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.

 

[Hexis22]

Watch repair is not something I will ever attempt.

Sometimes it’s a good thing to know your limits…

 

[MarkWComer]

This hobby will test the limits of anyone’s patience.

But will hone your skills in case you engage in a cussing match with a sailor…

 

[J!m]

My dad was a sailor, truck driver and mechanic.

Yes, I’ve heard that one before too…

 

[GeorgeP]

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.

 

[Hexis22]

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…

 

[laatsch55]

It certainly has Eric...

 

[Deano454]

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…

I've got the same preamp great sound

 

[gene french]

I've got the same preamp great sound

nice!!!!