I hope you get it sorted out Dan but I was being facetious about the eBay tubes advertised as tested good. I wonder what tests were done? I noticed another ad for similar caps saying

Eh, just noticed there's a nice database system right here. Just click on database ^^^^ up there somewhere.

Maybe we should keep a database of 547s by S/N and if they had the transformer rebuilt? Might be good come selling

I have experienced that same problem also. Go to Harbor Freight and buy a 'slim Jim' or use a long piece of hacksaw blade. The slim Jim is a long piece of tough thin steel used to open car

Is there any way to tell if a Tek transformer has wax or epoxy? I have a small suspicion that the tranny in my 536 has been replaced -- Possibly with one with epoxy. Were replacement

Hi all,   My caps probably are bad.  When I first got the scope around 1980, I learned about "black beauties" and had to replace them in the power supply, but I think I recall being told that the

I would certainly test HV again with the CRT still removed. CRT anode lead well insulated. Albert

(coninued) I forgot to mention (well, thought of it later on) that both heater windings in the 564 are at the same transformer leg. The other leg is empty. So there is no need to equalize. I didn't

We seemed to have started a trend of HV threads! Thanks for the clarification on the transformer test and the center tap of the primary. I guess I need to read up on Hartley

That's good. Sent it just now. It's just a manual for the 1S1 plugin but it's just so awesomely well done by a really good guy I have to share it.

My 465's also hang up solid on the grounding tab extension(s) and or the screwhead, as these protrude right out to the inside surface of the case. These can be found on any of the 4 sides, some of

Use KO4BB.com instead -- DaveManuals@...www.ArtekManuals.com This email is free from viruses and malware because avast! Antivirus protection is active.

Intriguing thing those equilizing "8" windings. Chuck (private mail) suggested that these would perhaps first of all serve to equalize the heater voltages. I happens that one of my 564's has one 5642

Another good site for uploading manuals and firmware for testequipment is http://www.KO4BB.com. Regards

Has anyone uploaded a manual there and notified ed? I did and never heard back. My upload is still sitting in the uploads directory so the file is there. Too bad, it's a good idea.

I'm not so sure. Yours may be faulty, these are tested good so they must be a rare animal. Don Black. This email is free from viruses and malware because avast! Antivirus

I'll check and see what's in there.   And when I take them out, I'll sell them on e-bay to an

from Tim P (UK) I had to wrestle the case off my 453 - turned out there was a piece ofsprung metal which (I guess) was to ground the scope chassis to the case. Thishad got stuck somehow and was

The handles on some scopes can be damaged/bent and get hung up on the chassis rear plate as the case slides out. Sometimes you can feel the handles bind when the case stops moving. Try pushing the

Most of the time with the 545, the problem is the black beauty oil/paper tubular capacitors used for the HV filters. They always go bad, and if they haven't been replaced, you must replace them.