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

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

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

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

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

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

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.

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

Hi guys, Another question for you on my TDS540 repair mission; When switched on from cold the traces are all off the bottom of the screen, but the trace indicator icon is in the right place. Over the

I have a 2430 in need of two socketed IC’s; U440 (165-1215-01) & U450. Channel 2 appears to work ok, Ch 1 has these two parts missing. Seems worth a try to just replace them and see if it comes back.

For Sale - Tektronix TM515 Power Module Mainframe $75 + SH - K217S cart $200+SH Location is Palm Desert CA Contact me via PM or email in interested.

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. * input_sourcefollower_schemati

Through an unfortunate series of events, I’ve ended up stuck with some display devices that I really don’t want around. I’m having trouble figuring out if anyone would ever want these things, or what

Hi folks, I have a 7603 that works quite well, but occasionally I hear a small "tick" up near the face of the CRT tube - like a quiet HV discharge. LV and HV power supply levels are stable and spot on

Hi Tek Group: My 2465 is stuck at Kernel checking when powering up. The LED light Trig'd flashes quickly, and the READY, +, - lights are OFF, ON, OFF. According to the manual, this is caused by Parity

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

As a new owner of this used oscilloscope and most importantly my first one without any experience I request some help. I posted a picture to Photos of the screen showing two horizontal lines the top l