Hi Dan, On the 7A26, these 4 capacitors C1012, C1028, C1022, C1028 were probably changed for improved reliability, since their use as filter capacitors may not influence much the performance

Good idea, Tony. I can upload a picture when the difference between before and after can have a useful graphic representation. They say that one picture can be worth a thousand words... Ernesto

There is no specific calibration procedure for cursors. The whole horizontal time base needs calibration it's not your cursors that are uncalibrated, your horizontal is out of calibration. My 2465A

are the calibration adjustments for the timing cursors done with physical trim-pots/caps or is this a microprocessor-based calibration procedure. I have the full service manual, but can't discern

Depending on what you can build, take a precision oscillator 20 to 50 Mhz or so.  You'll want to divide that down by 10,5,2 as needed to get timing pulses.  Your highest frequency must be handled by

Thanks for the reminder, as I have two 7A26s, each with some issues to check. Along with other 7000 series and a few 5000 series plug-ins to check.  Did find a shorted Ta cap in an S-4 sampling head

I have a newer 7A26 with a 670-2549-21 PCB. I can report that with this revision, Tektronix had decided to replace all four solid tantalum capacitors with general purpose Nichicon aluminum

Ernesto, if you can upload a picture before and after and explain it with IT IS OK NOW or this didn't work..... I'm sure you make it to work!

I have a meguro mk-669c and I need the English version of the service manual and can only find the one in Japanese and needless to say I am not even close to knowing that language so, if this isn’t

This then would be a good time to remind those members with limited bandwidth of the options available for the group. Under the subscription heading  you will find: Email Delivery Individual

Hi TomC, I found three 7A26 plugins in my old collection. Two of them look OK. The third one has two tantalum on the amplifier board blown up. C1018 (spread around an ugly black cover all around)

Gary, Consider this: * 8,000+ TekScopes members around the world were copied on your message. * Some of our members have severe bandwidth limitations and this message wasted it. * How can I tell if

Hi Folks - I've recently had a few extra hours at home, as I imagine many of you have, and have returned to a 2465B rehab project I started lat last year. I replaced did a full re-Cap of the PSU,

On Sat, 18 Apr 2020, Sergey Kubushyn wrote: OK, it looks like it was a reply to my own message, no quote in it so I didn't know who Maurice was replying to. Yes, I am still looking for that software

I would like to purchase an extender card for my 7000 series oscilloscope. I do not want any connectors. Please e-mail me with details of how I can purchase this circuit card. I believe it would

Hi! I'm looking for the user or service manual of the optional GPIB interface in the 5223. Any format (original/copy/scan) would be ok. Holger

On Fri, 17 Apr 2020, Maurice Smulders wrote: Could I also have a copy? I do have Windows95/NT software but not DOS one which is very nice to have and actually desirable. > Rather late ;-) but I

Does anyone know of a utility to get screen shots from a TDS5054 via GPIB? OpenChoise does not support it. Thanks kindly, Dave

My experience was tantalum failures in 7A26 plugins. When they fail short high current burns inductors consisting of 47 turns wound on 10 ohm carbon comp resistors. Those resistors can produce a heck

Hello Daniel I am interested in the plug-ins if still available. Please confirm :-) Cheers, Rick