......and another sustain unit!

[StephenGiles]

Here:
http://webplaza.pt.lu/~jmernzer/iceland/sichipauproj81b.gif
Stephen

[radio]

Hi again

Good search,by the way the initial topic was how to change

russian kP303 bigate fet with 4 legs to regular j201.

The analogy is that this error amp comp of Silicon chip au has published in
1998 had to substitute

the bigate fet.

As a result you should try b for a to get first version,some resistor

changes too.I tried both version ,oscillation is a issue that only is

avoided by soldering pots directly,i insist,on PCB

A mistake I made never substitute any value around control current of

error amp even as low as 3%away from original.

Could scan technical explanations if you need them?

Greetings JMErnzer