Could this be a copy of the Heathkit keyer from the mid seventies ?

It's hard to see the name of the chips and my guess is TTL's.

Just a guess....

ottar

Tim Wescott wrote:

It was obviously hand-built, so it's probably not from a kit. You'd have
a better chance of IDing it if you posted the list of IC's -- that may
ring a bell for someone.

Better yet, since all the IC's are socketed and since reversing the power
supply probably damaged any that aren't destroyed completely, why not
replace them wholesale?

Or keep the nicely made mechanical work in the cabinet and put in brand
new
keyer guts? This may be the least expensive of all.

"Shane" wrote in message
...
I was given this a while back by a friend, unfortunately he had back
wired it and ended its life, does anyone know or recognise this
kit/circuit? as
I
really need to get hold of parts list/ schematic.

here are some pics.

http://homepage.ntlworld.com/shane.rea/keyer/1.jpg
http://homepage.ntlworld.com/shane.rea/keyer/2.jpg
http://homepage.ntlworld.com/shane.rea/keyer/3.jpg
http://homepage.ntlworld.com/shane.rea/keyer/4.jpg
http://homepage.ntlworld.com/shane.rea/keyer/5.jpg

Thanks in advance for any info

Shane