The 7D20's appear not infrequently on ebay; there's 3 or so there right 
now, one of which even allows a 10 day trial and return if not 
satisfied.  From time to time, I look at them wistfully thinking how 
nice one would look on my heap of 7000 series modules.

Of course, it's not as much fun as finding the hard to find chip and 
replacing it yourself... ;>
MD

Christian A. Weagle wrote:
> Bummer about your 7D20, but aren't they amazing devices?  I love the
> tiny little text they generate...  Another project I may (never?) do is
> whomp up an outboard power supply so all you need is an XY display to
> use one of these.  It could happen.

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