[GreenKeys] Need ST5000 schematic + RS232 mod for ST6 article from CQ Dec 84

[Jim Pruitt]

Does anyone happen to have a schematic for the Hal ST5000 that I could see
or get a copy?

I am also looking for the article from CQ December 1984 for converting the
ST6 for RS232.  Does anyone have that one in electronic form?

Thank you.

Jim Pruitt