Speaking of Hack-A-Day (referring to granz's post (https://savagechats.com/index.php?topic=597.0)), I saw this article where someone was building their own EPROM eraser.
Improvising an EPROM Eraser - Hack-A-Day (https://hackaday.com/2018/01/17/improvising-an-eprom-eraser/)
Improvising an EPROM programmer - Source Article (https://charlesouweland.wordpress.com/2017/12/28/improvising-an-eprom-programmer/)