Can't find it either in any of the X-ref lists I have. As you know already, 1854 are usually NPN transistors, but around these numbers I see mostly Darlingtons in my collection. So maybe that's what you have, and why the junctions would test weird. Marc
> On Oct 15, 2018, at 10:21 PM, Josh Dersch via cctalk <cctalk@classiccmp.org> > wrote: > > Hey all -- > > Got an HP 2382A terminal I'm attempting to resurrect. I get no video, no > heater, no high voltage. What I believe to be the horizontal output > transistor appears to be bad, but I'm not sure if this thing contains > internal diodes that might be throwing off my testing attempts. It's > labeled "1854-0900." Anyone know what this actually is? (Anyone have a > service manual for this terminal?) > > Thanks, > Josh
