[sdiy] Vox continental - one other thing...

[Travis Shire]

> Sorry, there's one other question I've got about the Continental.
> 
> Why do the OC71 germanium transistors have *four* legs?!
> 
> http://www.electricdruid.com/continental.gif
> 
> It looks like a basic transistor flip flop, but I don't get the four- 
> legged transistors drawn as a black box. What's going on?
> 
> Thanks,
> Tom
> 

Dulpicate connections to the case or a lead to the substrate maybe?