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2026-03-17 by jpdesroc@oricom.ca
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.
2026-03-17 by Thomas Hudson
UTSource (www.utsource.net <http://www.utsource.net/>) is a US supplier for old parts. I’ve never order from them, but they have pretty positive reviews on diyAudio. They have it in stock: https://www.utsource.net/itm/p/1859728.html M5201P | In Stock | Utsource utsource.net
> On Mar 17, 2026, at 12:00 PM, Jean-Pierre Desrochers via Synth-diy <synth-diy@synth-diy.org> 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. > ________________________________________________________ > This is the Synth-diy mailing list > Submit email to: Synth-diy@synth-diy.org <mailto:Synth-diy@synth-diy.org> > View archive at: https://synth-diy.org/pipermail/synth-diy/ > Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy > Selling or trading? Use marketplace@synth-diy.org <mailto:marketplace@synth-diy.org>
2026-03-17 by Oren Leavitt
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. >