Fender stage lead II channel switch

[DrGonz78]

I am looking to replace a channel (A/B) slide switch on a this Fender Stage Lead II, but am having trouble understanding how the switch functions. I have a slide switch that could work as it fits in the chassis just right. However, I am not sure what is happening when the switch is moved from channel A to B.

The switch that I have now (on,off) resembles the fender switch almost completely, but I am wondering if I need an On/Mom type switch or something different. The original switch is completely busted and looks like is missing a metal part that use to control the throw of the circuit. I found this switch that is On/Mom and might be what I need. I am just unsure...

S112032SS03Q C&K Components | CKN9890-ND | DigiKey

Also the schematic is located here...
http://music-electronics-forum.com/a...ge-lead-ii.pdf

The switch part number is... 025279-000 channel switch ESS2207

Thanks for any help on this one...

Edit: After studying the schematic for a while... I think an on/off switch is correct. To me this preamp is combining channel A into chan. B and then allowing the signal to be pushed while in the second channel. However, it appears to me to be a connection of both channels w/ a drive function when channel B is selected. So a simple on/off switch would be right? Let me know if my thinking is worth thinking... lol

[Enzo]

I don't see an AB switch, do you mean the litle on/off down by the footswitch jack? That is a plain vanilla on/off switch .

You have two separate preamp channels. One into IC1 the other into IC4. The output of each channel arrives at a JFET used as an on/off switch - looks like Q8, Q9. I expect you will find that when one of them is on the other is off.

[DrGonz78]

Yes it was a plain old vanilla on/off switch and it operates just perfectly now. I barely ever run into these switches for switching channels. Sometimes tracing out the schematic between two separate boards proves to give me a headache when trying to understand the circuit. Thanks again Enzo for the great clarification of the circuit too! I understand this much better now.