Synth-diy-test

If the real deal is unobtainium, seems like you can probably make a 
"daughter board" substitute with a dual OTA/VCA (LM13700, 2164, etc) and 
an inverter/buffer.

On 3/17/26 11:00 AM, Jean-Pierre Desrochers via Synth-diy wrote:
> I have a 30 years old Marshall preamp (JMP-1) that needs
> 
> M5201P (or substitute NJM2102D) 8 pins DIP switchable opamps.
> 
> These are obsoletes and I can only be found on eBay from China suppliers 
> (Fake ones ??)
> 
> Any good USA suppliers or someone have some for sale ?
> 
> Thanks.
>