I found some on ebay from China…
With 100% satisfied users they may be genuine ones…
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Bought myself a Craigslist guitar and amplifier, plus my vacuum tubes showed up from China!
Safety valve VCA on deck once the bare stripboard shows up!
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I’ll be interested to compare notes on the VCA when you finish up. I need to do a video about mine. I ‘think’ its doing what its supposed to?
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Which schematic did you use? I’m planning on making the “Dud” version linked in another thread.
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Also based on the Dud design - its the one in the verified stripboard layout thread.
Finally some ctorp love! But frustrated at the postie (mailman) who shoved it into my tiny mailbox tho.
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I believe that should be called the “De Dud” version. @Dud?
oooh no it’s a Niklas Rönnberg version plz, i’ ve just put a link 
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Nah! I think I’ll keep this running as “De Dud” has a wonderful onomatopoeia. If you say it fast and low it sounds like turning on a huge amp. 
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Not a lot of mail for me lately but today I got two! (That’s a lot ok!)
One was a patch from a pal who wanted to send me some Memphis mo-jo to see me through the winter. (30 years since I played in Tennessee) .
The other was a Banjolin! English and about 100 years old. It’s in need of some tlc but I’m very happy to give it a home.
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What type are the silvery capacitors in the transparent bags? And what do you use that type for?
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polystyrene [ 2.5 % tolerance ] use were tolerance and stability are important . on the MFOS VCO pcb’s there is a call out for one in a certain position on the board .
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oh yeah those too , for the https://www.circuitbenders.co.uk/forsale/drumBs/drumBs.html
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Whats the function of the Patch-O-Matic?
Patch-O-Matic is part of a larger system which amongst others involves Envelope-O-Matic, the 14 channel envelope follower I have been working on. I will start a thread soon to explain what it all entails.
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