Swapping collector and emitter with DPDT switch

[gonkulator_modulator]

Hi guys,

Could anyone post here the diagram of swapping transistor's collector and emitter with DPDT switch, please? I want to built both Devi Ever's Soda Meiser and Vintage Fuzz Master in one stompbox. This diagram was posted on Devi Ever's forum but unfortunately I didn't save it and now I have no access to that thread

[Taylor]

This is something that could be reasoned out instead of just told to you - I think it would be a useful way to start understanding how things work with electronics.

A DPDT is equivalent to 2 separate switches, each with one pole and 2 throws, which are switched at the same time. So think about what you want to switch:

1. You want the collector to connect to point x in position 1, and point y in position 2
2. you want the emitter to connect to point y in position 1, and point x in position 2

How would you do it? Give it a shot and I'll let you know how you did. I like when people give me homework, so hopefully you do too.

[gonkulator_modulator]

Well, I've got an idea, but I'm not sure if it works. I think I should read more information about switching

[PRR]

> I think I should read more information about switching

Always a good idea.

>  I'm not sure if it works.

That should work.

[Perrow]

I like when people give me homework, so hopefully you do too.

I seem to remember you giving people homework before  Always a good way to attack a problem. Always easier to help someone who cares enough to try on their own.

[gonkulator_modulator]

I've just found some information about the power supply polarity reverse. They suggest exactly the same switching diagram. Well, I have reinvented the wheel but sometimes that's quite useful Thanx everyone for support

[PRR]

> I have reinvented the wheel but sometimes that's quite useful

To understand it, you should be able to invent it.

Being not-the-first to invent something may rob you of fame and fortune. However we don't know who was first to publish the DPDT Reversing Switch, and I bet he got no fame or fortune from it.

Knowing it at the level that you can re-invent it when needed means you have the basework for other useful variations.