Help figuring out a switch configuration

[suncrush]

I'm thinking about doing a fuzz pedal with switchable diode configurations, using a rotary switch.

A two-pole switch is required, so that the diode pairs can be disconnected both at both ends.  No indicator LED is required, so a 3P switch is unnecessary.

Is that all right?

Does it matter whether the switch is break-before-make or make-before-break?

[GGBB]

What is the reason for disconnecting the diode pairs at both ends?

Mbb or bbm would only matter of you plan to switch while the pedal is engaged and while signal is passing through - break-before-make could cause a brief loud burst of sound.

[UKToecutter]

Hi Suncrush

I can see no need to disconnect the diode pairs at both ends.
Disconnecting at one end will have the same effect.
If you are switching 2 pairs of diodes you can achieve this with a standard single pole changeover toggle switch.

[suncrush]

If you switch at one end, you would essentially have a situation that looks like this:



Would you not get noise from forward current through D1 and D2 since resistance through them is very low?

[nocentelli]

They are only connected at one end - no current will flow.