5E3/5G9 Hotswitch mod

[deqqed]

Howdy ya'll--I'm going to mod my upcoming 5G9 build to drop the mic channel and add Doug's hotswitch mod (http://www.el34world.com/projects/hotswitch.htm), does this implementation look OK? 

I'm planning on experimenting a bit with the values for Rc and Rg.  Any thoughts?



thanks,
david earl

[tubenit]

That looks like it's drawn correctly to me.

With respect, Tubenit

[tubeswell]

I'd be inclined to make both Rks in V1 1k5 to begin with.

As for the grid load resistor after V1'b', that is in parallel with the V/TS - so if you may it smaller, everything will be more lossy.

[deqqed]

Thanks for the responses!

You know, I put that load resistor there because Doug's circuit had it--but it's not completely clear to me if it's necessary here.  What would be the effect of omitting the load resistor? 

thanks,
david

[topbrent]

You might take a look at Doug's Stout.  It is a simple amp with a similar architecture.