1st of all, somebody should ban this 'opqr347' spammer prick!
All I got from any of his posts was, "Last night I was playing with myself......."
:lol: :lol: :lol:
Anyway,
I can't remember about the switches, and there are a lot of guys here who know a lot more than I do.
The DC-5A has LED's for each channel.
The DC-5B does not. This is the easiest way to tell them apart.
My DC-5 is an 'A' version. It has LED's, and metal switches. It had the following differences from the DC-5B drawings:
Different Reverb Circuit
Slightly different clean channel circuit.
I changed the Reverb to the 'B' version of the circuit and it made a world of difference.
Sorry I can't be of more help.
Maybe after the coffee kicks in!