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Projects => Tech Help - Projects Page => Topic started by: kaycee on April 21, 2022, 08:03:58 PM

Title: Weener Wah Trim Pots Values?
Post by: kaycee on April 21, 2022, 08:03:58 PM
Whilst having a sort through the storage drawers in the shed, I found a forgotten envelope with a couple of PCB's inside. One of which is a Weener Wah II board. It has space for two trim pots, one marked T1, the other 'Volume'. Looking at the schematic/BOM for the current Weener board there are no trims on it. I've had a search around but can't find a previous schematic so if anyone can help with the values, that would be great, Cheers.
Title: Re: Weener Wah Trim Pots Values?
Post by: Bio77 on April 21, 2022, 08:48:00 PM
The build doc is in the archives section.  In the Weener Wah folder there are two pdfs, one is for the WWII. 

https://www.madbeanpedals.com/projects/archives/index.html (https://www.madbeanpedals.com/projects/archives/index.html)
Title: Re: Weener Wah Trim Pots Values?
Post by: kaycee on April 21, 2022, 09:05:21 PM
Thanks, but it doesn't seem to be that version either. The board is a rectangle with the two bottom corners cut off, a circular marking for the inductor at lower right and the two mystery trims are located on the right side of the board with three pads above marked BO, BIN and ALT?, a gain trim is top left (assuming thats the emitter resistor of Q1?).
Title: Re: Weener Wah Trim Pots Values?
Post by: jimilee on April 21, 2022, 10:24:13 PM
T1 is 50k volume is 100k