[cctalk] Re: Identifying This Component from VT100 Monitor Board

On Sat, Feb 7, 2026 at 2:19 PM Wayne S via cctalk <cctalk(a)classiccmp.org> wrote: Yeah. I was restoring a VT100 I got from my former employer decades ago - I repaired the PSU (bad regulator diode) and everything was going great, but while it was open and on the bench, in quick succession, the image on the screen started dancing wildly then I saw a wisp of smoke come out of the flyback and it went dark. I've been using it with an external monitor because it's about the only VT100 I have on hand (vs VT101, VT103, VT105, etc...) and I'm trying to debug a loose Retrographics VT640 cage which only fits in an unexpanded VT100 because of the card cage and the PSU cable (VT101 is completely different inside). Once I get the VT640 working, I'll see about finding some other 12" CRT out of something. ISTR the tube doesn't have too much burn-in so that's a decent spare. I can't trust the analog video driver card from this unit because it seems that was where the problems started. -ethan