Reverb question

[bluebunny]

I think the point of both these designs is that they have "tails".  They are always buffered (never bypassed) and the switch cuts off the feed of dry signal into the PT2399s.  You could use a 3PDT (assuming you leave the circuit otherwise untouched), but then you'd be wasting two thirds of it.   

[Lbzg]

OK, now we are getting somewhere...If I leave DPDT switch on, will then bypass be better, same or worst as with 3PDT? Or it will not even be present?

Second, how to convert 3PDT to DPDT? What points do I need to ignore on it?

What do you mean by "tails"?

[bluebunny]

I think you've had your questions answered in another thread where you've asked much the same thing...  Both designs only use an SPDT switch arrangement: you either use a DPDT and don't use half of it, or you use a 3PDT and don't use two thirds of it.  Someone did a good diagram in the other thread.  You'd simply use one set of contacts on the switch (rather than the two or three on offer).  And there is no "better" or "worse"...

By "tails", we mean the reverb dies away naturally when switched off, rather than cutting off instantly.  If you're in a hall and you're talking, you'll hear reverb.  If you stop talking, you still hear reverb until it dies away to nothing.  Just because you stop talking, doesn't make the hall instantly silent!