My 7623A scope has recently developed a problem when asked to store anything. It doesn't show a trace at all. I can see the time-base triggering, but there is no trace at all to be seen on the CRT, ot

I accidentally touched the ground clip on my 465 Ch 1 probe to a "hot " AC-DC radio chassis. (I have an isolation transformer. Thought it was connected). It blew channel 1 out, but channel 2 and the r

I am looking for the manual for an RM561 B rackmount scope, I can't find a download or for sale on the web. I can find the regular 561, but the B is different. The mainframe has been hacked on, so I n

The TekScopes archives are readable by members of the general public. Recently a message was posted to TekScopes that is not a reflection of the other 8,000 members of TekScopes. Many members have ale

Hey guys, Got a 2465 that appears to work OK so far. I noticed the trace is kind of thick, even with no probes attached. The only way to get a thin, clean trace, is with the 20 MHz BW limit on, Is thi

I got most of the repairs complete on a 577 that was pretty trashed I was in to the calibration document to adjusting the vertical amp gain there was very little adjustment. Holding in the beam find b

Well, at AT&T in 1965 for one. https://youtu.be/tziav_yq5_g?t=994

Hi everyone. I’ve got a 7633 which I purchased having a red surplus tag on it stating “short trace”. Knowing the reduced scan mode, I suspected that someone had tested it in that mode and surplussed i

Hi, Have tried Sphere and Qservice with no luck. Hoping someone here has a lead. Thanks. Doug Gordon Sent from Mail for Windows 10 -- This email has been checked for viruses by AVG. https://www.avg.co

Hi all, My name is Christian and I have a test equipment problem. I have a new-to-me 11801A that has the standard boot diagnostic NVRAM error. I'm all ready to go in and pull the Smart Sockets and fig

I'm seeing a problem with my Tektronix 465 where on initial power up, the trace starts off stable, but after a few minutes starts to "dance" up and down the screen. If I change the vertical setting, i

I've been studying and experimenting with the readout setup on a 7A26, in order to convert it into this current probe plug-in that I mentioned recently. I'm quite familiar with the 7K readout system,

If I am going to recap my Tektronix 465 scope, does anyone have a list of the usual suspects, offending electrolitic capacitors, which absolutely have to go, because they are a common point of failure

Two Questions: The 3 V battery for the NVRAM in my Tek 494 spectrum analyzer is down to 2.62 V. I understand memory is safely preserved down to the 2 V level; but is there any way to predict how much

Does anyone have the schematics for a Tek 4050E01? It is the ROM extender used with the Tektronix 4052 and 4054 display/computers. Cheers, Lyle -- 73 AF6WS Bickley Consulting West Inc. http://bickleyw

There is an odd posting of a Tek 570 vacuum tube curve tracer on eBay at the moment.The starting price was $2 and bids have got up to $11.50. This price is surely a steal, if true. Oddly enough, thoug

Does anyone stateside have a spare Tek fuse holder cap/insert (200-2264-00) they'd be willing to sell me? The only ones I can find are on eBay out of Greece and will take a-month-and-forever to get he

Does anyone happen to know the actual contact current rating of the Tek cam switches commonly used in many front-end attenuators and other spots? I'm modifying a 7A26 to be used specifically for P6021

The R5030 is a very unusual scope, ti has the large CRT and fiber-optic display like the 576 curve tracer, and the lighted function switches from the 7K plug in series, along with amazing sensitivity

Richard Steedman wrote on 10/8/2020 2:53 PM: > Just for future reference if someone searches for this thread, the 366-1258-00 knob is also used on the 7S12. > A 366-1299-00 from a 7A18 or 7A26 makes a