Re: ICE Speedmaster 1000 Eprom programmer
Alternatively look for a non-switched-mode unregulated 15VDC one, remove the bridge rectifier and smoothing capacitor and take the output of the transformer directly to the output cable (or via an inline fuse, if you want to be cautious).
(Usually, putting a bridge and a smoothing capacitor on the AC output of a transformer results in a DC voltage somewhat higher than the AC voltage output of the transformer - so you need to think this in reverse, look for a PSU with higher DC voltage out, so when you remove the bridge and capacitor, you get a correspondingly lower AC voltage than the marked DC voltage - if you follow).
Even then, the actual AC voltage output from the transformer will rise and fall as the load increases and decreases. I think you can be reasonably certain the EMP-10 has internal voltage regulators, not so sure about the eraser though.
Just looked at the PSU for our EMP-20, it also has a 12VAC supply, although ours is the 230V version of course. It's held together by screws so I looked inside to see if it might have two 115V primaries wired in series, but sadly not, just a single 230V winding.
Details on our (230V) supply are:
AC Adaptor
Part No:TA2CE2200L00
Input 230VAC 50Hz
Output: 12VAC 2.2A
Globtek NJ/USA
Made in Taiwan
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