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 Post subject: EPW477 V1.0
PostPosted: Sat Dec 29, 2018 5:30 pm 
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So some bowl winder in another state traded in his DIY project at Guitar Center. They soldered up a couple of small PCBs marked as above, all connected with black pushback wire to board-mount pots that aren't mounted to either board. Board mount jacks not mounted to either board either. The boards have spots for those components, so I think this is all a kit. No battery door. Big Muff Black Russian box. The boards are just floating in there on the wiring with black electrical tape backing.

Any chance someone recognizes what kit these boards are from? One opamp. Three diodes. Three knobs. One of the boards has a 9V jack, which was my first clue sumpin's not right.


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 Post subject: Re: EPW477 V1.0
PostPosted: Sat Dec 29, 2018 8:35 pm 
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Joined: Sun Nov 18, 2012 5:13 pm
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Location: Soddy Daisy,TN
....bowl winder, that’s a new one. Got pictures?


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 Post subject: Re: EPW477 V1.0
PostPosted: Sat Dec 29, 2018 10:06 pm 
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I'll try to get pictures up tomorrow. Forum software doesn't like my file sizes. Thanks for looking.


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 Post subject: Re: EPW477 V1.0
PostPosted: Sun Dec 30, 2018 5:00 pm 
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 Post subject: Re: EPW477 V1.0
PostPosted: Sun Dec 30, 2018 5:01 pm 
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 Post subject: Re: EPW477 V1.0
PostPosted: Sun Dec 30, 2018 5:03 pm 
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 Post subject: Re: EPW477 V1.0
PostPosted: Sun Dec 30, 2018 5:04 pm 
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Found a single transistor on one of the boards. So one transistor, one opamp and three clipping diodes.


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 Post subject: Re: EPW477 V1.0
PostPosted: Mon Dec 31, 2018 7:34 pm 
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Location: Fayetteville, AR
I’ve seen a lot of PCBs, both production and DIY, but that one’s not familiar. I’d guess a tube screamer variant based on the proximity of the clipping diodes to the feedback loop pins on the opamp. Without a schematic or other documentation, you may be better off finding a known DIY circuit and building it from scratch - unless you just enjoy a challenge :)


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 Post subject: Re: EPW477 V1.0
PostPosted: Mon Dec 31, 2018 9:23 pm 
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michaelballard wrote:
I’ve seen a lot of PCBs, both production and DIY, but that one’s not familiar. I’d guess a tube screamer variant based on the proximity of the clipping diodes to the feedback loop pins on the opamp. Without a schematic or other documentation, you may be better off finding a known DIY circuit and building it from scratch - unless you just enjoy a challenge :)


I ordered a Large Beaver Russian kit to put in this box. My install will probably be as ugly as the one I cut out. :)


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 Post subject: Re: EPW477 V1.0
PostPosted: Wed Jan 02, 2019 2:36 pm 
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Joined: Tue Feb 07, 2012 3:18 pm
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Location: Nashville, TN
I can't help you, however I must know what a bowl winder is? :D Dbag? Moron? Sounds like a good Southern saying I can place in some convos here.

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powerpopguy wrote:
warm places theory sounds plausible. Occasionally, I wake up and think my snake is missing too, but it turns out it's just a chilly morning. :P


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 Post subject: Re: EPW477 V1.0
PostPosted: Wed Jan 02, 2019 3:28 pm 
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https://www.urbandictionary.com/define. ... bowlwinder

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 Post subject: Re: EPW477 V1.0
PostPosted: Wed Jan 02, 2019 5:48 pm 
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Those definitions are close, but the way I originally heard Jackie the Jokeman Martling describe it, it's a turd that's so big that when you flush it, it stands up on one end and the other end starts winding round and round with the swirl.


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 Post subject: Re: EPW477 V1.0
PostPosted: Thu Jan 03, 2019 9:54 am 
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Location: Nashville, TN
Holy smokes. I could have guessed a hundred things and would have never gotten to that description :lol:

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powerpopguy wrote:
warm places theory sounds plausible. Occasionally, I wake up and think my snake is missing too, but it turns out it's just a chilly morning. :P


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