[Joe Johnson]

I am looking at a Victor with exactly the same problem you describe.

We were noodling around driving things we probably should be driving with a Victor (I am ashamed to say I was using it a load for a charge circuit for batteries -- Not exactly the design usage) something when pop and no more reverse.

Anyway, it is hard, but not impossible to fry an entire leg a Victor's H bridge*.

Joe J.

*Actually, it is quite easy to toast the MOSFETS in a typical H-bridge (I have a PILE of those next to the bad Victor). It is a tribute to Tony & Bob & the rest of the IFI Gang that they have wrapped these fragile jewels in such a way as to make it quite difficult for us to destroy.