Chuck Adams' Modification of the MXM Simple Transceiver -- An Early QSO with the MXM Thirty Years Ago

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Esteemed Homebrew Hero Chuck Adams AA7FO saw me struggling with the T/R switch on my hamfest-found MXM SupeRX/TX transceiver. Chuck kindly sent me a modification of the circuit that allowed for automatic T/R.  I see it also envisioned the use of a VFO.  We are not sure if this version of the MXM transceiver ever made it to market, but it certainly would -- in any case -- be of interest to homebrewers.  

Chuck wrote: 

Attached is a schematic I drew for Bruce almost 30 years ago with a program that I wrote.  This is for the Simple Transceiver where Bruce and I worked out the solid state switch to replace the slide switches you have to use to switch between receive and transmit.

BTW.  MXM stand for 1990, the year Bruce started his kit adventures.  I worked Bruce on the first beta build of the transceiver Denton TX to Smithville TX on 40m during the day.

Thanks a lot Chuck.