Barber Electronics forum.

So how many versions of the direct drive are there and what are the differences between them. I have what I thought was a V1 because it is signed and the writing is handwritten on the outside however it pas a push pull pot on the tone which I am not sure the very first ones had. Then when the outside box changed I know there is a version with an internal trim pot and one without. Thought it would be interesting to see what changes were made down the line and no amount of googling could find me that info.