I'm a bit confused about the Trinitron having "dots", the Trinitron relies on stripes and the mask is an aperture grille.

The three beams are dynamically and statically aligned via a set of magnets and electromagnets arranged around the neck of the tube, in addition to the yoke coils that deflect the three beams

OK, I have a _very_ limited knowledge of colour CRTs, but I think the "magic" is called a "shadow-mask". The three electron guns are located in slightly different places ate the "gun" end of the tube

I have a 577 D1 which is rather similar to your dimmer tube. It originally had an obviously failing CRT — dim to barely visible in non-store mode and double-peaking — but storage mode worked

Hi Tom, My question is probably quite simple but, like I said, I'm not finding a good answer. As I understand it (and from personal observation when I had a Trinitron TV and I'm primarily wondering

I dont know if this helps, but I have a small stash of metal can J310 type.Jeff Kruth In a message dated 11/16/2020 9:35:56 AM Eastern Standard Time, charlesterrebonne@... writes:  thanks to

Instead of sticking in a socket, just measure IDSS first. I posted the current range that will work. You may still have a problem with the bias circuit. I've never run into a 22xx scope that was

Hi Barry, Pete's book mainly covers electrostatically deflected crts. Except for some very early models, TVs used magnetically deflected crts (to allow large screens without absurd set depths). The

I am working on some 577’s D1 storage curve tracers. I am trying to get a 178 working. So I need the storage tubes up and running. I do not have much experience with storage tubes hence the noob

Yes, I am reffering to the kink at the left side of the trace, the IV curve appears to be pushed up higher on the screen than normal

Thanks for the replies Refer to this link below https://groups.io/g/TekScopes/photo/255355/1?p=Created,,,20,2,0,0 The offset knob is set to 0 and the ZERO and AID switches are IN. I pushed them in

Dennis beat me to it. Are you possibly referring to that little kink near the left side of the trace? -- Michael Lynch Dardanelle, AR

It has about 100 pages on TV type CRT's. CONTENTS Cathode-Ray Tube Fundamentals A Laboratory Curiosity RADAR Indicator Cathode-Ray Tubes Oscilloscope Cathode-Ray Tubes Monochrome Television Picture

Hi DW, It would help if you said what you thought was odd about the curves so we knew what we were looking for. There is nothing wrong at all as far as I can tell other than the base steps are offset.

Hi Simon, Yes, I got your info and added you to the list. I will keep everyone posted via TekScopes on what comes next once the orders stop, Peter runs out of books, or I stop accepting orders in

Hello, I have a 577 D1 serial B030223 that appears to have developed a slight problem with displaying an IV curve https://groups.io/g/TekScopes/photo/255355/2?p=Created,,,20,2,0,0 If you click on

Does anyone know whether this book covers CRTs that were used for color TVs (and other color displays)? I ask because I'm not finding good information on how those work. Thanks, Barry - N4BUQ

thanks to all who replied - the 2215A scope is off the bench for now but Ill get back to it soon and will report when I get this working...I am almost at the point of sticking a high quality

Siggi, There are two preset pots in the S6 head for gate balance (R30) and 'gain' (R45), either could be noisy, but a more obvious suspect is the edge connector from the S6 to the 7S12 since the DC /

Hi Chris, I don't expect any problems shipping this to Germany. One correction: This offer is strictly between Peter Keller and individual members of the group. I did offer to act as the go-between