Amplifiers for EDC, Krohn-Hite, 501J,E100, 2902,VS330,MV105G,MV106 & others

Description

The units labeled  C-2,3,4,5 and 6 were sold but the rest are all the same.
These are my single chopper stabilized  amp version of the replacements for EDC  supplied amps.
They are certainly equal to but actually better than the EDC amps they replace.
They are unconditionally guaranteed to function in your E100, 501J, VS330, 2902, MV 105, MV106 and the G versions.
They were burned in for over 200  hours in a 501J.
I will guarantee that my  amps to be fully functional and direct replacement for EDC supplied plugin units or your money back.
Any questions please ask and I will respond.
Pictures 6 thru 10 are examples of the type my amps replace. The list is not complete.
Pictures 11and 12 are of my original work modifying the boards of my EDC units and the first prototypes I built.
These boards were done previous to the single op-amp versions I am selling here.
A shorter pin was used on some amps.
If you need more info or pics let me know. I respond quickly.
Thanks.....
in Yeshua