Hi Jim, I suppose 2 years are a lot of time :-) but I've bought a TRS-80 Model IV and it arrived to Spain with the CRT broken. I'm googling for some information about to buy a replacement one and I found your message: Item #1 ------------ For the past eight years I've been keeping a box that supposedly has a B&W CRT in it; it was given to me by a retiring engineer and TRS-80 enthusiast. I finally opened the box and confirmed there is a CRT of some kind it it, although whether or not it is for a trs-80 I haven't checked. I have no need for it; anybody willing to pay shipping on it can have it. It is in great shape and in fact, might be unused. It looks to be about 12" diagonal. There are a lot of different markings on the tube, and I'm not sure which is the most important; in fact, the layout of the markings is such that I can't always tell what goes with what, but I'll try my best: RCA Electron Tube 12VCLP4 Model No. 6 EIA 274 KTR131B Elsewhere it says EIA 1240. That's my CRT!!!! You don't already have it, have you? Do you know where to get a (cheap) one? Thank you very much,,,, Albert.