Mark I question

[Tiki295]

Since you have to use an external A/B switch to toggle between the two channels, can you run an ABY pedal with a Mark I and blend the clean and dirty channels?

 

[mark1406]

Hi Tiki, this isn't possible as the preamp is cascading one stage into the next. They aren't two seperate preamp stage.

In the case of the Mark 1, a single triode is used to over drive the first stage of a Fender style circuit.

Sorry, I couldn't give you good news.