QTH.COM Swap Chat

How for back can I access the files of advertised equipment, specifically a Heathkit AT-1 transmitter? A friend either bought one or traded for one off QTH.com. It had a note inside from the builder from many years ago. We have tracked down the builder who now lives in Australia. I plan to write an article for ER and the missing piece is who sold it to Will Prince and where did they get it. Any help appreciated. Best 73, Gary / K5JWK / gharmon@idworld.net.

Will Prince, the guy that sold me the AT-1 with the note inside, says he believes he bought it traded for it in 2017 and possibly from someone in KY.