Modular Synth Panels group photo

Yahoo Groups archive

Modular Synth Panels

Index last updated: 2026-04-28 23:10 UTC

Message

Re: [ModularSynthPanels] arp 4075

2008-05-15 by loopcycle

i would be really happy to see a 1U panel for the 4075.

i have no idea where to source a 1k87 tempco, so i was thinking i'd just use a
regular (1% metal film) 1k87.  1v/O tracking will be lost when the filter
self-oscillates.

according to the docs:  "the filter works perfectly well without hand matching
the transistors."





--- adaaxs <wonggster@...> wrote:

> I just got an analog metro 4075 board (a lot of us probably have).  Are there
> enough of us to 
> get a panel or will I end up housing it in a oops panel.
> 
> It has 5 matched pairs of 2n5087,  do I have an alternative to measuring a
> bag of these 
> things, I don't really know how to do it properly.
> 
> Should I use a 1 or 2k tempco Precision has no 1k87 in stock. 
> 
>

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.