Marshall Dummheit

[Bongolation]

I picked up a Marshall GV-2 cheap at a GC sale about a year ago and did my usual thing of opening it up, taking a look at the circuit, satisfying my curiosity and chucking it in a drawer, where most stomps belong.

I was looking through my stuff and found it yesterday and remembered there was some mystery about it, then I saw what it was again:

The instructions for using an AC adapter are contradictory.

It says in big letters to use "9V NEGATIVE GROUND ADAPTER," (like keyboards) but the diagram shows the usual stompbox 9V positive ground. The print instructions further obfuscate the matter by saying it uses a "9-volt positive adaptor." Positive what? Pin or ground?

Jeeze, what numbskulls. So, does anyone actually know which grounding these pedals use?

Thanks!

[Scionreality]

I ran mine from standard Boss style power adapters. 9VDC, center negative.

[bongomania]

Just for added confusion, there is no such thing as negative ground or positive ground. I mean "ground reference" can be a plus or minus voltage, but the plug sleeve is not always ground. However the Marshall pedal I had ran off a Boss center-negative adapter.

[Bongolation]

Glad to see that these are "normal" after all.

Coincidentally, GC has them for $29.99 this weekend (I paid $26 for mine) in their recent spate of cheapy buzzbox offerings for $30. OK deal on a through-board stomp with four-band EQ, I guess.

I wonder if Marshall has their info straight on the unit by now.