Thx for that advice: Here is my plan : Topic: Replacing/upgrading the LTC 7P Lithium battery backup for the 2465A STATIC RAM. Replacement Battery: http://www.newark.com/jsp/search/productdetail.jsp?sk

I completely forgot to mention that the covers for the pairs of transistors in the attenuators, per the item number in the subject line, have rotted in my unit. What have you used to replace them? Has

I did a quick search and found some cryptic comments in one or two instances of someone using a particular glue or epoxy to repair the above. Alas, the correspondent made no mention what he was using,

I have a Curve Tracer Adaptor, P/N 013-0128-00, for a 5CT1N/7CT1N plugin and a previous owner removed the larger of the two sockets (for a TO-5?). From the documentation I have, that socket is P/N 027

I have a 465 that I have already done some maintenance on and that I thought was fine. Instead, when it came to using it for real, I realized that the two tracks suddenly disappear after about 3 minut

I have a 7B80 which doesn't work in external triggering mode and I discovered one of a matched pair of JFETs in it (Q22A/B) decided it liked being a diode instead of a transistor. As the subject indic

Olá, After getting the LV rails in order on this old scope, there is no vertical deflection. The trace sweeps horizontally just fine. Looking in the service manual, and following the troubleshooting c

Hope this is OK to blow my horn a little... A few weeks ago posted some vids on reviewing the 545 and working 531 I have in my collection of test equipment stuff. New to posting videos. Working 531: h

Hi Tek Group, I have a Tek 2465 that has power supply issues. I have followed the instructions from the Tek Service Manual, and found that the INVERTER DRIVE portion of the inverter board is problemat

Needs a loving home. Never abused likely never used. Includes the return card so you can 'drop it in the mail' to get on the Tek mail list. Has a couple dozen yellow change pages in the back. The only

Hi I fixed my 2465 over a number of years, replacing the ROMs etc and fighting my way through the CAL process despite not having the best kit. My question relates to the frequency measurement readout.

Hi all, I've recently purchased a 7A16A, working, looks new, S/N B138015. Probably the previous owner has tried to calibrate the HF response in a badly manner: risetime was 3 ns with very rounded fron

Hi All, I got a 2445A Tek scope with a CH 1 problem. Applying a square wave to the input of this channel gives me a square wave on my display with an overshoot on the trailing edge, which isn’t presen

I have a new in Box MSO 2012B I will sell for $1600 plus the ride. US sales only unless you want to arrange shipping, I will attach label and send off just contact me for my address. This is 100% new

The following photos have been uploaded to the 7A16A step response (with 7854) ( https://groups.io/g/TekScopes/album?id=262075 ) album of the TekScopes@groups.io group. * step_response_Q150A_pulled_ou

I purchased a 7514 which came with, among other plugins, a 7CT1N. After cleaning some of the dirty switches (still need to clean the leaf switches), I'm able to get a set of traces for a 2N3904 and/or

I have an opportunity to get a TDS420a that supposedly works. I haven't tried it in the flesh yet. In looking at the tek wiki and the pictures of the boards, chances of me being able to troubleshoot t

Here are some pictures of my completed 2465 restoration. I didn't have a real nameplate for it, so I grabbed a picture of a 2465 that I found here and cut the nameplate from it. I did a little editing

Battery mod to avoid battery discharge when is off I use a new 4 amp smd mosfet with 2 volts gate VT https://groups.io/g/TekScopes/album?id=275120

Hello All, A friend is selling his Tektronix 7854 at the Dayton Hamvention next week. He will not ship this item. It is in working condition and includes the keyboard, 7B85, 7B87, and two 7A24 plug-in