[sdiy] eprom question

[Senso]

>>>someone to burn for you. Used programmers are reasonably
>>>priced.
>>>
>>>Mikael
>>
>>Then, while we're at it, I'm also looking for a programmer. The 
>>hardware type.
>>One that will burn 2708/16/32 and/or 2508/16/32 Eproms.
>>Still got some old synth OS chips that beg to have backups made 
>>before the data is all gone.
>>
>>Senso
>
>A lot of the secondhand programmers on eBay at giveaway prices seem 
>to be missing their driver software, or use dedicated ISA cards for 
>their PC connection, so beware if your PC is too up-to-date!
><snip>
>The Willem boards will do down to 2716s (with an extra pinout 
>adaptor). Unfortunately they won't do 2708s - but not much will :-(
>
>Steve L.

A while ago I got myself one off eBay for a (very) good price indeed, 
complete with software that re-instated my almost forgotten C-64. 
according to the instructions it would indeed do the 2508 and 2708 
for me.
After I finally remembered the right codes to load, save, etc, (last 
time I turned it on was 125 years ago) it turns out there is no third 
voltage supply line on the program board.
Second, it does no checksums and will happily make a perfect copy 
from an imperfect original, stating  that everything compares A-OK.
So I'm back to square one. I have a few Macs here, Atari ST's, C-64's 
and even an MSX and i'm not anxious to add a DOS machine, just to 
copy a few Eprom's. So if anybody is aware of the existence of a 
stand-alone machine, knowing brand and type number would already be 
great. It would make my search a bit lighter.  ;-)

Thanks,
Senso

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