[Premium-Rx] RA6790 IC

[Ka9p at aol.com]

Hi Bob, I have a tons of sleeve of spares for the 6790 here but alas not  
that apparently because it was not a spare stocked in the repair depot that 
the  guy before me picked up, before I got his 7 dead radios.  I built 4 
working  ones and piled the rest in the garage - but he wasn't the guy from 
Dayton.
 
I'm guessing it's U15 on the A7 card you're looking for?  (if they're  also 
on another card let me know) I've got 2 spare A7 cards in my not tested,  
probably never use pile, you're welcome to try them and if one works you can  
send me your dead one, or if all else fails, extract the chip from one of 
them  and send the rest back.
 
Scott
 
 
 
 
In a message dated 12/18/2011 11:51:19 A.M. Central Standard Time,  
ranickel at comcast.net writes:

Looking  for an 82S83 (or 74F583) BCD Adder IC for my 6790 - or sources 
for  same.

A suggestion for 6790 owners:  consider replacing the 12,500  UF filter 
cap on the 5 volt supply as preventive maintenance; it seems to  raise 
havoc when it fails.

Also - wonder if anyone knows what  became of the big pile of non-working 
6790s that were sold at Dayton last  year?  All went to one buyer from 
what I was told, so there ought to  be lots of parts out there somewhere.

Thanks and 73,
Bob  W9RAN.
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