I've seen late TM503's (nomenclated TM503A) with a self-contained power supply but all the TM504's I've seen don't have a removable power supply assembly. A "naked" TM504, even a TM503 would be

can rotate it to get convenient access to the plug-in. It can be use with double-wide plug-ins such as the SC504. How about using a TM504? Does the cover come off those easily?

I had some (7000 series scope plug-ins) connectors made, but am out of stock right now. If you want to order 100, I have a source in Taiwan.

I find a convenient way of debugging TM500 modules is to use a bare TM502 power supply. It can be removed from the case. You can rotate it to get convenient access to the plug-in. It can be use with

Back in the olden days, if you saw: 5V4, you were talking of the metal envelope tube. 5V4G, you were talking of the coke bottle glass tube. 5V4GT, you were talking of the straight sided glass

Colin, Hatchet is sheathed. My point on my spelling of Guernsey, is the only internal spelling checker I have in me (an intentional redundant redundancy) spells phonetically. So, every time I type

Thank you for that clarification. I was puzzled by the fact that two adjacent 5V4G tubes were in different bottles. So if I'm reading your comment correctly, the straight-sided, smaller one is newer

Chuck, Since this whole thread on the Guernsey Island 2445 has that (correct) spelling as its title, I wouldn't have thought it would be so hard. I am only being a bit grumpy, not really fuming mad.

Speaking only from experience with TDS 540x, yes the calibration is kept on the acquisition PCA. I think, but have not taken the time to prove, that the primary use of the NVRAM is to store trace

Steve, If you are hesitant to use eBay you can buy a NOS tube from Antique Electronics Supply. They currently list a 5V4GA for $29.90 at

Tektronix called its factory in Heerenveen, The Netherlands, "Tektronix Holland" Why should I differ? Calling it "Holland", for short, when I am writing about Tektronix factories, simplifies my

I ran across two cables, about 3.5 feet long. BNC on one end and what looks like a push-on SMA on the other. Marked Tektronix 010-164 and P6041 Zo=50 ohm. No need for them, will swap them off for a

Sorry, it's claimed. I promise next time to list things just like they were going in test equip for sale, with location, condition, price, payment methods... I just thought this one was not going to

What country is it in? What are you asking for it?

It's my understanding that the calibration constants are stored in EEPROM on the acquisition board. There's no reason to worry about the options, as it's easy enough to restore those with GPIB or

Bite me! -Chuck Harris Colin Herbert via Groups.Io wrote:

None of mine start with a J: 305113 302234 302310 302903 These are Sony/Tektronix323 and 324 scopes.

I'll probably think of it right after I hit "send", but what does SPC stand for in this context? Steve Hendrix

Hi Steve, Make sure that it passes SPC from the utility menu - at least 10 times with no failures. Also run the full self test from the same utility menu. Jay

Steve- Looking at the schematic I downloaded for the 514, there are five capacitors in the power supply that are two section 20 micro-farad cans, and these all should be tested, reformed, or