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Does 7403 has a linear power supply right? Some may say that this is an advantage because it is easier to repair. Others say it is not good because it is quite a bit heavier. BTW does the 7603 have

Thanks Stan, I added a turn to the heater xfrmr for now and will look for a new tube. Jeff

Hello! I have the chance to pick up a relatively cheap (remember, I am in Spain) 7403N mainframe along usual plug-ins... I already have a R7603 and several plug-ins, so it would be an spare set. I

Sounds like you need a new CRT to me. Stan w7ni@... Jeff Kershaw wrote:

Hi all, I am restoring a 2215 for my Dad. I have managed to cobble together a couple of them and have an almost good one, save one problem. The 'scope has good intensity at long sweep times, but

Just joined the group and wanted to express my thanks for this forum. I have a 515A and am evaluating a 453A-2( with Stan's help) and need this venue for help and advice. Thanks!!!!!!!!! Stephen,

If you are seeing an intensitiy modulation of the trace and I think you're correct in that the OSD update and the waveform you're viewing interact resulting in a slow beat frequency which is visible

No, given it goes away when I switch end of scan updates for the OSD on I imagine it's just the gun moving to update the OSD and, thus, causing a brief break in the waveform trace. No - I know have a

I'm not sure what you mean by "dot crawl". Are you referring to the mesh ghosting? THAT doesn't sound good! adjusted Steve, the bistable mode on the variable-persistance scopes (7623, 7633,

My limited experience with 465 was a dried electrolytic, still some capacitance, around 20% of nominal. I also heard from other people about broken caps (open circuit) or drastically reduced value.

Stan or Patricia Griffiths wrote: Thank You. I will send you a check in the mail. If I can, I would like to take you up on the signature too. I would appreciate it. Best Regards, Mark

I checked catalog from 1988. Option 78 is what Stan said, P11 phosphor only; a good photographic phosphor, but a god awful blue color that hurts eyes. The other things that you are talking about,

Hello All, I'm not sure if my scope is construed as a classic and, therefore, if I've posted this to the wrong group I apologize. Anyway, I recently purchase a 7623A mainframe along with 7L12, 7A26

Sure Don, I am always happy to autograph the book when asked to do it. Stan Don Black wrote:

If you go the <http://www.reprise.com> there is a page for "Stan Griffiths". I think that is where you will find the book info. In any case, I sell it directly via mail, for $24.95 and I pay the

Does any have a 152-0716-00 or know where I can get one. This is a times 7 high voltage multiplier. It converts the 3KV high voltage from the HV transformer to the 21KV CRT Anode supply. This is a

Hi, I am the owner of used Tektronix 465 with instruction manual since two weeks. First I started the calibration procedure. I???ve found in the power supply which is normally 110 VDC a voltage

Sorry Stan, I didn't know you sold the book direct. Perhaps you would autograph it for Mark too if he asks nicely. Don Black. "Phil (VA3UX)" wrote:

Just eMail Stan directly. He also puts them eBay in the Test Equipment section. Phil

Hi Mark, You should find it a a good technical bookshop. AES <www.tubeandmore.com> and Amazon.com <www.amazon.com> both stock it. Don Black. Mark Gurries wrote: