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Building your own stompbox / how do I test Veroboard? Big muff help!
« Last post by Davelebon on Today at 09:10:39 PM »
So I have been wanting to destroy my work area because I cant get this diy big muff to work. I boxed it and I thought it would work and now I learned that you need to test it before you put it into the enclosure. My question is what is the best way to go about this. Should I just completely forget the enclosure and build it enclosureless? Then would I build another board to put into an enclosure or can I salvage the board. 
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Well I didn't want to believe that two pots would go bad but I went ahead and replaced one of them first.  Lo and behold the stupid thing actually fell apart in my hands when I removed it.  Needless to say they aren't Alphas.  Now that one channel works, time to replace the other one... :icon_rolleyes:
Thanks!
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Building your own stompbox / Re: 1980s Stereo Memory Man Chorus Issue
« Last post by flo on Today at 05:26:15 PM »
Do you perhaps have some gut-shots of your Stereo Memory Man PCB, top and bottom?

That would be awesome!
It will help me fix my old EH7811 Stereo Memory Man!

Thanks already for the posted schematic which helps a lot and the effort.
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Building your own stompbox / Re: AIRCON
« Last post by EBK on Today at 05:22:27 PM »
If I understand it correctly, the IR from TX is reflected off of something (a hand or a foot) and back to RX.  So, it is like the LDR-only approach, but has its own light source.  Might possibly be improved if the IR were modulated and the RX had a filter loosely matched to that frequency (to reduce the effect of ambient IR).
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Building your own stompbox / Re: AIRCON
« Last post by Mark Hammer on Today at 05:13:10 PM »
This is going to need a little more explication.  The only thing I'm sure of is that LDR1 is replacing a resistance somewhere.  I have no sense of what is controlling it, though, given the inclusion of 4 LEDs.

As an aside, I have used an LDR mounted to the surface of my guitar as an expression-pedal substitute, where an expression-pedal jack only expects a variable resistance to ground.  The caveat is that it requires an available light source to block with one's pinky.  Does this get around that sort of constraint?
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Building your own stompbox / Re: Deacy, Maplin LT44 and LT700 and Impedance
« Last post by mac on Today at 05:09:03 PM »
Quote
I have the lt44 and lt700, but I'd like to mount the plate with the original transformers.
you could pass me the link to buy them.

I'm not sure if the guy who discovered that the Deacy circuit was a Supersonic PR80 radio made in Zimbawe in the 60s, or a clone of it in the UK, sells transformers similar to the originals.
I have the schem of that radio. The output transformer is not similar to Maplin or Mouser ones. Looks like an auto transformer.

mac
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Building your own stompbox / Re: LED switching question
« Last post by marcelomd on Today at 04:54:40 PM »
I am always amazed at the over-engineering that happens on this forum...   

What are you trying to do!?! Go away with your simpler, smarter and elegant-er solutions! Shoo! shoo!  :icon_mrgreen:
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Swap R9 & C7. Reverse the diode.
But, don't the CLK only act on the rising edge? If so, what does slowing the falling edge achieve?
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Building your own stompbox / Re: Randall RG100ES. Layout inside.
« Last post by Marcos - Munky on Today at 04:30:26 PM »
The ZW overdrive is indeed a modded SD-1. I used to have a clone, that a friend borrow to test it and the pedal never came back...

Yeah, no rocket sciencie. And actually I got pretty close to Dime's tone using other Randall (which I don't remember the model, but it surely wasn't the RG100) and a Sweet Honey OD.
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