Derek92994's 700 Ser II White Oak conversion

[derek92994]

Full Bias please

Rough day for me, have not been feeling well, had a rest and not much better, gotta stick it out.

 

[derek92994]

A friend of mine has suggested Passive pre-amp where the signal does not flow through a volume pot. I'll audition one sometime and see how it sounds.

 

[laatsch55]

Resistors also have noise.......the only thing that does not produce noise is a piece of wire with gain.....

 

[derek92994]

Resistors also have noise.......the only thing that does not produce noise is a piece of wire with gain.....

Not much advantage then compared to conventional pre amp? Those passive things are quite expensive too.

 

[derek92994]

Could plug the source directly into the WOPL and use the volume pots on the amp itself if I want to be as direct as possible source wise?

 

[laatsch55]

Yes you could. But remember, a good pot is almost invisible anyway. I have run CDP's straight to the WOPL's, with a good pre I would be hard pressed to tell a difference and doubt I could do it in a blind test....

 

[laatsch55]

Right channel done....

 

[laatsch55]

Left side done....will power this amp up tomorrow night....

 

[laatsch55]

The power supply....700VA Toroid, 4-35,000uf/120volt caps, 2-35 amp BR's.....

 

[derek92994]

Brilliant! =)))

 

[fitz43]

The power supply....700VA Toroid, 4-35,000uf/120volt caps, 2-35 amp BR's.....

What's with the chrome choke control under the toroid?

 

[laatsch55]

That is a 75 amp push/pull switch....

 

[laatsch55]

I have to bring up the power supply on a variac and DBT after the big caps have discharged fully. It'll take out a 20 amp breaker if I dont.

 

[orange]

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[derek92994]

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Fucking Hilarious

 

[gadget73]

24 each 6-32 screws per backplane board.

I asked only because it looked like a flat washer and a nut in the center of the board in some of those pics.

 

[laatsch55]

So what is Dr. Who doing?

 

[derek92994]

I asked only because it looked like a flat washer and a nut in the center of the board in some of those pics.

I'm sure that Nav can relate to that one!

 

[laatsch55]

I asked only because it looked like a flat washer and a nut in the center of the board in some of those pics.

That's what holds the boards to the chassis until the outputs are mounted.

 

[derek92994]

So what is Dr. Who doing?

He's imitating you when the WOPL goes up in smoke