MFJ Grandmaster Keyer
 

I'm looking for a manual for an MFJ-484C Grandmaster Keyer. Also for a 482
Grandmaster keyer. MFJ has evidently determined that either no one owns
this product, or just doesn't care about supporting it, as there is no
manual available for download from their website.

Most immediate issue is that one connector on the rear panel is marked +12
VDC, the other "Voltage Adapter" - or something similar .... I'm not looking
at the keyer. I don't know which one to apply 12 volts to, nor do I know
the polarity.

Thanks!

Jeff


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Thanks,
Jeff, W8KZW
Near Detroit