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Nope - Power switch front lower center on the TM504A, Also has IEC cable, fuse and voltage selector and FAN unlike the TM504

Darned fumble fingers. That, of course, should be CDPC (Common Design Parts Catalog). Dale H. Cook, GR/HP/Tek Collector, Roanoke/Lynchburg, VA http://plymouthcolony.net/starcity/radios/index.html

The 1982 Semiconductor CDPD (which also includes lamps) shows it as a CM2107. Dale H. Cook, GR/HP/Tek Collector, Roanoke/Lynchburg, VA http://plymouthcolony.net/starcity/radios/index.html

I read that manual from cover to cover, over and over again, as an information starved boy will. I was all ready to conquer the world with tunnel diodes, and went off to Radio Shack to buy some,

TM503 and TM504 have their power switches as pull tabs on the side of the front panel. TM503A has its power switch as a rocker switch on the rear panel. I would expect that the TM504A would simply

546 and 547 also available in Minneapolis Keith

Good call. Mouser has 10V 27mA.

"lop pol via Groups.Io" <the_infinite_penguin@...> wrote: ==================================================== Bulb part number 345 comes to mind. 6 Volt, 0.04 Amp, T1.75 Bulb,

Try Mouser. If you find the part that was used from the Tek manual or the common design parts document, it is possible to put that into a search on Mouser. I have purchased several lamps for my Tek

I think if I needed to do this, I'd seriously think about replacing with an LED and resistor. Craig

Thanx folks. Nope - never found any documentation on the TM504A but I do see them out on Ebay - it looks more modern then the other main frames in the series. Apparently is is quite rare indeed but

I just bought a TEK 922 for next to nothing, mainly for troubleshooting experience. It isa great looking little scope, just was not working. Someone had taken it apart to "Clean" the switches and

One of my 453s needs a trigger lamp. (150-0046-00) Looks like its 10V and 40mA. I see nothing on the auction site. What are you guys doing to replace those? Closest as I could find was 10V 60mA.

Wow... thanks a lot for these two links ! I am only 40 yo so I wasn't quite born when these classic Tek scopes where around... all these old catalogs and 700 pages worth of monthly notes, are

I have been on this list for a number of years and the diversity of scopes, plugins and other and the OT posts are what make this group GREAT.Splitting up in to 200 or so groups would compound the

If you want to segment this group into sub-groups, take a look at this site: http://amfone.net/Amforum/index.php You could segregate it into sub-groups along the lines of Equipment Catalogs (such as

Roy, Let me know if and when. I also have spectrum analyzer plug-ins. The 1L20 is available. I have never used it as I have my 7L13, though it doesn't go to 4.2GHz. Carl

will be out of to. I've been looking back, and my first post to the list, message number 943 (4353 posts to date - 3% of all list posts, ever) was on 6th Nov 2001. So actually 16 years and counting.

I would say that "..seem to widen gradually with increasing intensity being maybe blurry and then finally looking like two traces.." is the most accurate description of the issue. There's most

I'll tell you this for nothing. If this group fragments in the ways that are being discussed, I