are go the trigger to DC using the to if that's mechanism. Hello Fred, if you are talking about TP1349. With intensity control fully CCW. I measured 4.5V using an analoge voltmeter. With the

I am looking for the CRT bezel complete with flex circuit and pushbuttons for a 2221A. The bezel from a 2232 would probably work also.

Whilst studying my 2711/12 to find the 10 ohm option enabling resistors, I have also discovered it seems to have a neatly installed modification not documented anywhere. Apparently someone modified

Denis - This technique was used by "Quietrole" potentiometer cleaner/lube. This was back in the 50's, before everything became "pressurized". You got a bottle of Quietrole, and a "hypodermic

Hi: The CRT may or may not be junk. Because a piece of the faceplate broke off does not mean the tube is bad. Turn the instrument on and try to get a trace on screen. If there is no life on the

My method is to use the strain relief from an old Tek probe cable, fitted to the thin tube normally supplied with these pot lubricant/cleaners. To get a tight fit I build up the tube with a few layers

While I wait for the bridge filter cap for the 5 volt supply, this would be a good time to address the noisy vertical pot problem. Assuming the pots don't need to be replaced, I was thinking of

G'day All: Of course another option is not to subscribe to emails, but to read the content from the group archives directly, as I do. The archives seem to get updated fairly promptly, and I doubt if

that is V including you sweep is not same need according to the 1kV. focus Hello Fred, I bought a 454 several months ago so I am not familiar with it yet. It has a couple of minor problems such as

Time to get a new ISP my friend You should never let your ISP decide who sends you email, it is defacto censorship. You don' t allow the phone company to decide who calls you or the US Post office

Blair, William wrote: When all else fails - call in the land sharks. Write (or have written for you) a "heart attack" letter to Road Runner management saying that unless they stop censoring your

Blair, William wrote: This is a major problem that seems to be getting bigger instead of smaller. For more discussion and some ways to combat the problem go

Road Runner has SPAM monitoring software in place. A lot of SPAMers use Yahoo email addresses to send SPAM. Road Runner detects a lot of SPAM coming from Yahoo's email servers, and thus blocks

Have you tried it on External Horizontal, i.e. X-Y mode? That would narrow it down to either the ramp generator or the deflection amp. I'm not a 454 expert; you experts, don't take my post as an

In working on one of my 545's with the internal graticle tube, I found that the thick glass on the front was similiarly cracked and flaking. This glass was very soft. I carefully pried it off and

Clean looking scope that I paid very little for because it lacked sweep. Figured it would be potentially debuggable. Particularly with a manual that is a dynamite resource for troubleshooting and

Well, the 512 is a real antique. As a piece of test equipment, it is barely useable. As a museum piece, it can be quite interesting. What condition it is in makes a huge difference in its value

Small woild.. So happens, a few years back I also received a UPS'd-7603. I saved several ccs of flaked off CRT front-glass for the Inspector. The tube worked! though I have yet to scrutinize, tweak

Deane Comments on the 512 noted-very interesting. Be interested in what you think re the 524AD - I have one in reasonably good order somewhere round here! Dave Brown Christchurch, NZ -- No virus

I just received a 7603 in the mail today. All was fine till I removed the crt bezel and found the lower left corner of the thick glass plate cracked off. I'm not familiar with the construction of