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I was not clear in my original post. For the past year the museum board has been evaluating the best way to make their invaluable collection of microfiche available to Tek collectors. This microfiche

It would be nice to able to really drive it at that frequency. My idea should work though. Part of the thing is to get enough voltage up to see if the CRT is shorted.

You can almost bet on it. I detest that type of power supply when it is self oscillating, but they are efficient when they work. So either the transistors are underdriven or overloaded. There is no

I have original (bound paper) Tek Common Design Catalogs #1 (October 1982): Semiconductors (includes Integrated Circuits) #2 (June 1983): Mechanical I am looking for Volumes 5 and 6 #5: Resistors and

Hi, I m from Argentina. I m repairing a 2445B. When I turn on it, the panel control lamps flashing one time only. The TRC never drawing anything. I check the J119 voltages, for example....pin # 1.

Thanks. I tried some typeface detection websites but even they couldn't come up with anything. It looks like the model numbers are in a different typeface? All simple to draw, or so I thought. I used

Hi John: My Tek Common Design Parts Catalog shows the Jedec part number as 2N6308. There are probably NTE replacements for the 2N6308. You should also replace all the associated diodes around the

I got a 7B53A in decent conditions. It seems in a good working state with one exception: the (broken) slider that selects "mixed mode" in delayed sweep, it's actuated by pulling the little red knob

Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the [email protected] group. *File:* TEK Part Number System.pdf *Uploaded By:* Robert

I have requested that Groups.io provide a search capability for the photo albums. This seems like a simple request since the albums are already in alphabetical order and since they already provide

Albert, Thanks for the heads up... my remarks just after your quote. As you will see on my other reply to Roger, I managed to make the proper vertical LF step response right, by using the LF

I set this on top during extended run time periods. /g/TekScopes/photo/37195/10?p=Name,,,20,1,0,0

Hi Bob, I had no idea it was in there. It is in my 1982 Materials Catalog as well. It is buried in there between different materials where I would never have found it if you hadn't mentioned it. When

This is a Permanent Split Capacitor motor. The cap, which is used all the time, not just for starting, causes a phase shift in its associated winding, which makes part of the overall magnetic field

Hello Roger, Apologies for the long delay for feedback... I was getting my hands dirty on the thing. See my comments right after yours... I confess that when I read your message, my first reaction was

Thanks for that, pretty cool. My two 754's were originally delivered to Texas Instruments and Virginia PolyTech University. The newer one was delivered in April '99 -? it's a B032XXX. So looks like

Slide the tool until the outside is just inside the holes for the part on the board. Use that notch. If you have the lead bending tool (the one with the thumbwheel), then there are tips much like a

I've always (50+ years) used one of these: https://www.travers.com/soldering-aidfrksplice-ttc/p/99-004-252/ They no longer sell them but I'm sure others do. I got a bunch on closeout from Travers for

That page (http://w140.com/tekwiki/wiki/Tektronix_part_numbers) is the work of Peter H, who is a very active editor of Tekwiki.

Hello All, Today I was doing some research about a TDS754D and found that you could go to the TEK website and run a search for the model number and serial number. The info provided will tell you who