Hi, I'm wondering if what I'm seeing is normal or not. I had some narrow pulses wide apart to display, it was give or take 1kHz and spikes were some 20ns wide. When I used the delayed B sweep I could

Hi, I managed to get a 5S14n on eBay for my 5440, I reckon it is somewhat of a rare item. While it is still being shipped, I'm preparing for what I will need to do. So far I've already read through th

Hi, I emailed about this before. I have a Tektronix TDS 684A scope, and it is in very good condition, and it was almost working, but now it is not. I bought it from a surplus place, and I had seen it

I just repaired the time base 7B53A and a new problem appears. An acrid smell came from the oscilloscope so decide to test the scope for 3 hours and the trace and readout disappeared. I measured the l

If anyone needs DSA602A boards or mechanical parts let me know. Unit is disassembled but metal will be recycled and boards listed on EBAY in the next few weeks. ed

Hi Larry- #17 ( after the EWs), Renée Deeter 1200 Independence Rd. Mokelumne Hill, CA 95245-9632 IF you need the phone 209-293-3129 I will await the request for funds. Thank you for all your hard work

Tek fans, I'm afraid I haven't been active on the list for a while because emails started bouncing for some reason and groups.io cut me off. I think I've fixed that now, though, so can join in again.

Hi! Does anyone have a spare 2712 GPIB board available? I am using a Prologic GPIB to USB converter, and the setup had been working great for a few years. Abruptly it ceased communicating, so I tried

Clean up time. With recent health changes I have to reduce my long term projects, encouraged by a higher in house authority. So, Two Scopes are going. One is a partial 7633. Whats left besides the fra

Folks, While chasing down a short I removed T1801 ( from the inverter board, but botched it and I need a replacement. On-line searches yield few and costly options. Is there one out there in TekScopes

HNY to everybody! In my SC-502 scope transistor Q855 died. It is a GE X44HR242 in TO220 case, but I was unable to get its specifications in order to find a suitable substitute. Thanks for your help Gi

I just got a 2465 in pretty good condition (one sharp dent in the case, a broken corner on the rear bezel, disintegrated rear cord-wrap feet, and a bent shaft on the SEC/DIV VAR knob) but after a bit

One book left Narita Airport in Japan on January 11, 2021 at 3:26 pm and is currently in transit to the destination. This will come as no surprise to our members in Japan. According to my friends at t

The following files have been uploaded to the Files area of the TekScopes@groups.io group. /AM503B AM5030 Calibration Adapters.pdf By: Dennis Tillman W7pF Description: This is an easier to read drawin

Hello All, I have for sale some TM500 equipment for parts/repair for sale as a lot. It is dirty and banged up a little from sitting around for many years. The lot includes 1 TM501 frame (working), 2 T

Hello all, I have the Tek-virus, that means: I buy a broken scope for parts to repair one of my projects, but in the end I just cannot take it apart, so I will fix that one too.... ;-) Since I love th

Hello: I am in the process of fixing a 7904 power supply which is in the 'tick' mode. I found that C1354 (on the top right of the cap-rectifier board) is shorted. It says in the manual that it is a "C

Dear Collective Wisdom, I was given a Tektronix Type 503 oscilloscope recently. It wasn't showing a trace. I checked it out and realized that a bad diode coming off of the the second power supply tran

I have an oscilloscope 6733 with two 7A18 and one 7B53A. The vertical channels are ok, the time base works ok as main time base but has the following problem. When I pull the TIME/DIV or DLY TIME the

Hello All, I have for sale a Tektronix TDS2014 100 MHz, 4 channel, oscilloscope. It passes all self tests and self calibration and has a good display. There are some cracks around the edges of the cas