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The Ultimate DIY Part 2 ? The KGITSOJC


kevin gilmore

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I have piles of those, I always buy 100 at a time so I get them in the small box. :) I still want to test why the Japanese high end always turned to Riken for the most crucial resistors in any circuit. Look inside any high-end Sony, Denon, Yamaha etc. (and I'm talking about the true state of the art stuff here, what they normally only sold in Japan) and they are filled with those lovely carbon film units.

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  • 4 weeks later...

fixed... :D

If you are building it yourself, the xono is going to be easier.

But the xono has coupling capacitors between the stages

and at the output. So if you want DC coupling...

(required riaa network is always going to require capacitors)

Its a shame no one has done the input stage as balanced.

Makes all the sense in the world for reducing hum.

Edited by kevin gilmore
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The Xono can be DC coupled. Mine is that way. Perhaps you can notice the jumpers in this pic (which are open) near the output caps:

IMG_0598.JPG

As for balanced input, I believe the Ayre P-5xe is. Here's a pic:

p5xec.jpg

Finally, I'd be interested in a schematic for the Klyne phono preamps. They have items encapsulated in little potted enclosures though, so you'd have to bring it into the lab I suppose:

klynemain.jpg

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fixed... :D

If you are building it yourself, the xono is going to be easier.

But the xono has coupling capacitors between the stages

and at the output. So if you want DC coupling...

(required riaa network is always going to require capacitors)

Its a shame no one has done the input stage as balanced.

Makes all the sense in the world for reducing hum.

Anything special about the Vendetta power supply?

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Anything special about the Vendetta power supply?

A pair of lm317 3 terminal regulators feeding fets as current sources feeding pass fets.

Cheap and effective. $20k blowtorch does exactly the same thing. You can certainly

do much better these days including tracking regulators to reduce the pumping of

the servo's. And much lower noise.

I saw a schematic for the klyne a while back, no idea if it was accurate or not, the

modules are just discrete fet opamps.

The sutherland is an expensive joke.

The ayre is much more my style these days :D

Edited by kevin gilmore
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The important fets are super glued together back to back. I don't want to mess with it and risk destroying

it because there are no replacements. The others have no markings on them other than the part number

and that typically means the BL...

It sure seems that each and every unit had different resistors to adjust gain and DC balance.

I may have found suitable replacement parts, but i have to build and test...

But first i have to order a bunch of them.

The klyne are an all opamp design with the opamps made from discrete parts.

Really the same thing as the vendetta, and many others. Only way to get the noise down

is with discrete parts.

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