[sdiy] Spare MN3009 for Juno 106

[Tom Wiltshire]

It doesn’t sound that difficult, actually:

http://www.florian-anwander.de/roland_string_choruses/index.html#comments 

Replace the MN3009 with MN3007 (which aren’t so impossible to find) and then change a couple of resistors to boost the clock frequency. Pretty straightforward.

==================
       Electric Druid
Synth & Stompbox DIY
==================

> On 16 Jun 2018, at 06:35, Ian Michael Ferguson <ifergu1 at gmail.com> wrote:
> 
> I'm afraid that's above my pay grade. :)
> 
> On Fri, Jun 15, 2018 at 9:24 PM Jackalope Billy <jackalope.billy at gmail.com> wrote:
> What about substituting another MN30xx chip and just modifying the circuit to make it work?
> 
> On Fri, Jun 15, 2018 at 10:49 AM, Dave Magnuson <abide at dmdrafting.com> wrote:
> It’s such a bummer, too. Small Bear has a couple flavors of the MN30xx chips, but alas, not the 3009
> 
>  
> 
> From: Synth-diy <synth-diy-bounces at synth-diy.org> On Behalf Of Ian Michael Ferguson
> Sent: Friday, June 15, 2018 1:03 PM
> To: tom at electricdruid.net
> Cc: Synth-diy at synth-diy.org DIY <Synth-diy at synth-diy.org>
> Subject: Re: [sdiy] Spare MN3009 for Juno 106
> 
>  
> 
> Oy...the nightmares are coming back to me.
> 
> I searched long and hard a few months ago for the "106 Chorus" eurorack module.
> 
> You either had to buy a whole salvaged chorus section to take used chips out of, or risk one of the eBay vendors which are frequently bogus counterfeits.
> 
> The only thing I didn't try was calling around repair shops, who might have old stashes.
> 
> Maybe Switched On?
> 
>  
> 
> If you find a reliable one, please let ME know. :)
> 
> -Ian
> 
>  
> 
> On Fri, Jun 15, 2018 at 6:50 AM Tom Wiltshire <tom at electricdruid.net> wrote:
> 
> Does anyone know where a person might be able to get hold of MN3009 for a Juno 106 chorus repair?
> 
> Someone was asking me about it, so I said I’d enquire here on their behalf.
> 
> Thanks,
> Tom
> 
> ==================
>        Electric Druid
> Synth & Stompbox DIY
> ==================
> 
> 
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