Not quite right to compare 250 to 10Meg and declare 200 to be therefore ok. By that logic, zero ohms should be just fine, too. Yet, Tek went to the trouble to use resistance wire. Clearly there's a

As I've said a couple of times, that circuit is very tolerant of FET parameters. It was designed to avoid the expense of matched FETs, so I very much doubt that any selection was involved here. Are

No, I did not do a YouTube video. But I've seen one out there. I didn't have a replacement cable or other parts. I cut my cable off at both ends as close as I could to the strain-relief parts, then

Well, that is sort of right. There was only one electron gun structure, but it had 3 cathodes, one for each color. There was no fancy electronic stuff, though. It was exactly the same as the other

Brent, did you also make a YouTube video about the process? I believe I watched such a video when I was first considering doing this; it was daunting, but encouraging. I have what appears to be a

IMO, the Trinitron based Tek monitors have excellent colour. Trinitron was the best colour CRT... far better than any competitor, when first introduced... and superior, in the consumer market up until

It is absolutely true. A consciencous station would have one or two typical home color TVs, connected to good outdoor antennas and not cable, in the control room to see and know what their viewers

https://seattle.craigslist.org/sno/ele/d/lynnwood-1962-tektronix-type-555-dual/7230942594.html

Tektronix made color studio video monitors that used Sony Trinitron jugs. In good condition and properly set up, the picture is excellent. Bruce Gentry, KA2IVY

The guns are indeed the same.  The electrons are the same. However, the shadow mask is the key.  The guns are in a triangle. If each gun were aimed at the exact surface of the screen, then each beam

Hi everyone, I'm searching for the above in good condition - if you have one for sale please let me know. I'm based in Switzerland, so prefer Europe but am also open to paying postage from US if I

Well, really, a shadow mask uses the parallax effect.

Hi Dennis, I had been to that page yesterday and I didn't quite understand some of it. Particularly, the following image wasn't helping that

In the days of color CRTs for television, I knew a guy who worked in a broadcast studio. Though Trinitron displays (Tektronix made a display monitor that used a Trinitron CRT) were used in the control

Hi Barry, As with so many things there is an excellent explanation on Wikipedia of shadow mask and Trinitron tubes and how they work. It is at https://en.wikipedia.org/wiki/Cathode-ray_tube. Scroll

Dennis, I agree with Larry, and my thanks to you for moderating this group and having good ideas. Byron WA6ATN

From having been through the adjustment process. I can say the dimmer tube that I have the brightness control does not appear to do anything for the over all brightness of the tube. I have checked the

Jeff, your probe is a 200mhz unit. I re-cabled a p6062 which is a 100mhz. However they appear similar and I expect are built about the same. I had a break. I cut the cable at both ends. There is a

Dennis, Just think of yourself as the poster boy for "No Good Deed Goes Unpunished!"  Let me add my thanks for the many good deeds. Jack

Trinitron page here: https://en.wikipedia.org/wiki/Trinitron Geoff.