Rhodes Chroma Polaris group photo

Yahoo Groups archive

Rhodes Chroma Polaris

Index last updated: 2026-04-28 23:17 UTC

Message

Re: [chromapolaris] Interesting mod...

2010-10-11 by john criado

try synthparts.com http://www.synthparts.com/ or synthtronics.us



Sincerely,
J. Michael Criado
Cusco Energy Resources, LLC
Fairmont, WV 26554




--- On Mon, 10/11/10, rob_ocelot <rob.ocelot@...> wrote:


From: rob_ocelot <rob.ocelot@...>
Subject: [chromapolaris] Interesting mod...
To: chromapolaris@yahoogroups.com
Date: Monday, October 11, 2010, 12:34 AM


  



I was checking out Youtube videos of the Polaris today and I came across this gem:

http://www.youtube.com/watch?v=TlXI0QBOAZw

Text in the video reveals that the owner replaced the last LM348 quad op amp (Z3 on the output board) with a TL048cn. The end result is supposedly a punchier sound and more defined low end. I did some more research and came across someone else saying to use a Burr Brown OPA2604 -- which is a dual op amp.

Anyone here attempted this mod or something like it? 

I'm contemplating using the 2604 since the TL048 appears to be obsolete and difficult to find. If I were to use two 2604's then is it possible to tie the 12V supply for each chip together? (effectively making a quad op amp)

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.