How do I switch between two boards in the same box?

Started by Bornhorst, January 23, 2006, 12:42:03 AM

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Bornhorst

I recently finished building an amz mini booster and a mosfet booster... I love each circuit for their differences in tone.
Now I want to mount the two boards in the same enclosure and switch between the two with a toggle or rotary.
What would be the proper connections so that the two boards can share the same volume pot?

Thanks,
Daniel

Dragonfly

#1
http://aronnelson.com/gallery/The-Mod-Zone-%21/WIRING_2_FX_IN_1_BOX?full=1

heres switch wiring...allows you to switch either, or both fx on/off in one box.... 


havent done a mod to share pots yet....

d95err

Quote from: Bornhorst on January 23, 2006, 12:42:03 AM
I recently finished building an amz mini booster and a mosfet booster... I love each circuit for their differences in tone.
Now I want to mount the two boards in the same enclosure and switch between the two with a toggle or rotary.
What would be the proper connections so that the two boards can share the same volume pot?

To use a toggle switch to select which effect to use, simply use a DPDT switch. Use one half to select input and the other half to select output.

It will be difficult to share volume pots between the Mini and Mosfet boosters. The mini booster has a regular voltage divider volume pot. The mosfet boost has a gain pot that affects the amplification level of the mosfets. What you could do is to use a trimpot to set a fixed level of gain for the mosfet booster, and then use a single 100k pot for both boosters to control the overall volume. Connect the output of each booster (before the volume pot) to each side of the second half of the DPDT switch. Connect the middle lug to the volume pot.

d95err

...attempting to clarify, hope it makes sense (A means first half of DPDT switch, B means second half of DPDT switch)

Input -> Foot Switch A ->   ------------------------- (bypass) ---------------------------  -> Foot Switch B -> Output
                                     -> Toggle A -> Mini Booster  -> Toggle B -> Volume Pot ->
                                                        -> Mosfet Boost ->