R.G.'s Hum Free A/B/Y Layout

Started by zpyder, January 16, 2007, 12:39:10 AM

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zpyder

Here's the layout with a link to the schematic.
Layout: http://aronnelson.com/gallery/humfreeaby
Schematic: http://www.geofex.com/FX_images/humfree2.gif

Uses a MAX1044 charge pump to get +9v & -9v from one source.  Verified mine the other day, sounds great so far!

zpyder
www.mattrabe.com/ultraterrestrial Ultraterrestrial - Just doing our little part to make new rock go where it should have gone in the late-90's, instead of the bullshit you hear on the radio today.

xshredx

Thanks a lot for the pcb layout!
This is one I'm gonna build...
Could you also upload the 'DIY layout creator' file? I would like to make a small change to the pcb layout if possible, and with the original file that would be possible...
but anyway, thank you...

zpyder

Sure... here's a zip file with all of the images and the .diy file:

http://www.mattrabe.com/circuits/Improved-Hum-Free-ABY.zip

Also, if you'd like to see my build, I just posted pics at http://aronnelson.com/gallery/zpyders-build-pics.  I did mine on perf.  Just spent some time playing with my two amps and my ABY - Mannnnn I love that thing.  Works great, sounds great.

Enjoy!
matt
www.mattrabe.com/ultraterrestrial Ultraterrestrial - Just doing our little part to make new rock go where it should have gone in the late-90's, instead of the bullshit you hear on the radio today.

zpyder

Just had a thought - I think there is one thing that could be improved about this pedal.  As it is, when you have both channels activated ("Y" mode), both LED's are also.  Which is fine as an indicator of what's on, but doesn't tell you anything about what's going to happen when you press OFF of "Y" mode - you don't know if it's going to be A or B.  This could be remedied by pole that throws between the two LED's be grounded directly, not through the other "Both" switch.  Then on the both switch, use the leftover pole to complete the circuit of an LED when in "Y" mode.  Then you'll know what you're gonna get when you switch out of Y.

zpyder
www.mattrabe.com/ultraterrestrial Ultraterrestrial - Just doing our little part to make new rock go where it should have gone in the late-90's, instead of the bullshit you hear on the radio today.