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DIY Stompboxes => Building your own stompbox => Topic started by: Angelo on May 03, 2007, 07:51:06 AM

Title: 250 Grey SOS
Post by: Angelo on May 03, 2007, 07:51:06 AM
Sending massive emergency call, could anyone please show me how to rewire the switch - in - out terminals in the way that a electronic dumbass might be able to understand. Thanks.
Title: Re: 250 Grey SOS
Post by: tungngruv on May 03, 2007, 08:49:04 AM
Look at the switch diagram on this page (not the true bypass):

http://www.diyguitarist.com/PDF_Files/WahTrueBypass.pdf

I'm pretty sure this will work on the 250, using the original SPDT switch.

Title: Re: 250 Grey SOS
Post by: Angelo on May 04, 2007, 01:01:15 AM
Thanks for replying

 Across the input jack 3 prong is there power ie negative to input sleeve and +9v to input ring? And output jack ring to switch common. Output ground in series with input ground to the pc board ground?



Title: Re: 250 Grey SOS
Post by: Angelo on May 04, 2007, 05:05:01 AM
Thanks Tung finally wired this 250 properly with your help and the technicians at DOD who sent me an original schematic for the 250 & Compressor its been 15 years since signal went thru the little tone box.

Ta