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Hello Rod,
well, I'm back and the new PCB has arrived from Mel Bartels, along with a few of the MC3479 field rotator chips (the ones I blew when I cooked the previous board). It looks as though the old board is OK with a new chip swapped in. Sadly I also cooked the printer port on the old Compaq I was using. I am definitely older and wiser. I realize now that I disobeyed one of the key instructions in the Manual - I hadn't connected up the motors to the PCB etc before powering up the board.
I have an AstroFest this weekend (in Qlod) and had hoped to finally give this big 16" scope it's first light there. But chances of getting it all set up in time are diminishing - so the forecast of continuing showers is almost a relief.
Peter
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