Greetings to the group, hope all of you are doing well, staying positive and testing negative! I'm still going through the estate of a deceased collector of test equipment and recently came across a s

These diodes are historical and quite ancient, so of course they show up in some Tek stuff like spectrum analyzer plugins. From what I understand they have a low Vf, but also a very low reverse breakd

1. 2020-Dec-1:Replaced X2 caps on LVPS board My 2467B smoked in last Aug,found out one of two X2 0.068uf/250V caps burnt,couple days ago I bought new caps and replaced the two X2 0.068uf/250V caps. ht

I need a schematic for another brand and have been looking high and low, but no avail... Would any of you know where I might find a schematic for a Ballantine model 1032A scope? Thanks in advance, Dav

Hello, I recently took an interest in analog computers. I ended up buying two Comdyna GP-6 units, serial numbers 269 and 019. For #269, the available documentation (I spent hours googling and download

Hello good ol' Tek guys. You will please pardon me since this is my first attempt at obtaining help on a group, but here goes: I'm a 70yr old two-way bench tech, started in the tube/vibrator/dynamotor

A simple question, can any 177 test fixture fit into any 577 curve tracer regardless of its build date / serial number? Thanks

Jeff, the resistors connected end to end are an attempt to make a required resistance that was not available as a standard resistor value. Shortage of parts? Engineering change? Select in test? Who kn

I found a small stash of older memory parts, all safely anti-static stored: MK4516N-15 (8) MCM4164BP15 (16) AM9101PC/P2101-2 (2) MBM2147E (1) SMJ4016-20JDM (8) Free to anybody that can use them. Also

My service manual for the Ballantine 1032A scope got lost; hoping someone here might have an electronic copy or could point me to a resource other than a $100 online manual vendor. Thanks, Michael

I'm selling a Tektronix MDO4104-6 4 Channel 1GHz Mixed Domain Oscilloscope, it also has 9kHz-6GHz RF optional input, the machine is in excellent condition. Frequency Range: 1GHz Number of Channels: 4

This is the magical device that changes some of Tek's monochrome CRT displays to color (Logic Analyzer, 5K scope, etc.) by time multiplexing the display through different color filters. Clever trick.

Dear all, I bought a Tek 2465BCT at Ebay. The scope was damaged during shipping and two control knobs had their shafts broken. While opening the unit to replace the pots, I used the opportunity to tak

Dear All, After fixing the A5 board of the scope which was damaged due to capacitor leakage I have started to try to calibrate the scope. I managed to adjust DAC REF without any issues and moved to CA

Rogerio O added the album Tek 2465BCT CAL01 weird behavior.: This are photos and movies of what I get when trying to execute CAL01 routine.

All- I am doing a bit of fall cleaning and have several hundred (10 lbs.) vintage Tek ceramic terminal strips and plastic inserts. I only need a few of them. The rest of the terminals need to go to a

Hi all. I'm currently restoring my DM502 Digital Multimeter and am looking for a few parts. Specifically, I need the 'dB' and 'INT' push button caps (with writing in good condition) and hopefully mayb

Hi folks, I was working on a 7T11 --> 7T11A mod for my recently acquired 7854. Got some intelligible traces @ 100kHz (albeit dotty) on the 7854 in SCOPE mode. However after trying these and a 7A24/7b9

While pulling apart this 465 parts scope I tried removing the pushrods from the Horizontal Display switch on the A7 board. Working on the bottom "B DLY'D" pushrod the push button came out of the switc

Have been searching but have not found the latest version of Firmware for TDS540A. Does anyone have an idea? Thank You Luca