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Vintage Synth Repair

Index last updated: 2026-04-28 23:41 UTC

Message

Re: Arp Odyssey: any note leads to a high pitch

2011-08-01 by Boddington

No problem Martin. C8 is still available:

http://www.newark.com/jsp/search/productdetail.jsp?sku=66K4992

I haven't had to look for a 6076 but for the 3958 I swapped it out for two MPF102s:

http://www.newark.com/fairchild-semiconductor/mpf102-d27z/n-channel-jfet-25v-to-92/dp/78K6093

You have to match the pin positions correctly but it will work. As you may have read, this same swap worked fine for Q6 on Board A as part of the same memory circuit as well.

If you need datasheets on these to get the pins right, just ask.

> 
> Is there any easy to find equivalents for:
> 
> Q7 - 2N6076 ->
> C8 - Polycarb Memorycapacitor ->
> Q8 - IMF3958 ->
> 
> Thanks in advance!
> 
> /Martin
>

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