[time-nuts] WWVB Kinemetrics 60-DC EPROM failure

Jos jos at mindspring.com
Thu Dec 31 17:07:49 UTC 2009


Happy New Year everyone,

 

 

I am hopeful someone may be able to help me with my Kinemetrics 60-DC WWVB
receiver. Recently, several of the caps in the power supply shorted and
burned up its transformer, but not before frying one of the  5V regulators,
placing about 15V on the logic boards (CPU and RS232 boards). I wasn't ready
to part with the unit and decided to replace all IC's with new ones (and put
them in sockets). The dilemma I now face is finding replacements for the two
fried EPROMS (M2716's) that make this clock "tick".

 

The EPROMS read as follows:

 

C60522R7

RS232 (LO)

F1E1  5/22/84

 

C60522R7

RS232 (HI)

A81E  5/22/84

 

I would be grateful for any suggestions as to how I could obtain or burn
replacements, and it does not have to be "Gratis". Please feel free to reach
me directly at jos @ mindspring . com (minus the spaces)

 

Many thanks,

 

Jos / W4JOS

 

 



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