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----- Original Message -----From: Ti_Sent: Thursday, May 15, 2008 10:20 AMSubject: Re: [ModularSynthPanels] arp 4075
I know Dave Brown has a page with a link to an Front Panel Express file of a 1u face.
He's built some kind of summing amp into it so it can accept 3 inputs. If a few more people want one we could save a few $s if we buy 5 or more.
currently it looks like the prices are:
1->5=$55.53
5->9=$49.98
10->19=$44.42
20->29=$38.87
Luckily I got the tempco when I bought my board from another list member a while back. My big problem will be matching the transistors. ...
~Tim
--- On Thu, 5/15/08, loopcycle <loopcycle@yahoo. com> wrote:
From: loopcycle <loopcycle@yahoo. com>
Subject: Re: [ModularSynthPanels ] arp 4075
To: ModularSynthPanels@ yahoogroups. com
Date: Thursday, May 15, 2008, 12:08 PM
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@gmail. com> 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.
>
>