Hi, I am a retired electrical engineer having designed electronic equipment for measurements in oil wells for over 30 years. About 40 years ago I picked up a 547 scope with an 1A1 plug in left as surp

Hi all, I recently got a (very?) sick 2215A from the well known ePay site. It came to me perfectly packed from Germany (Thank you for that!) , and was as described and as it was shown in the pictures:

The 7L5 manuals say the Dot Frequency should reset to 0.000 kHz at power on. There have been previous posts about this not happening, but no mention of a fix. I have personally seen two 7L5s, includin

The ch 2 lever moves but stays in dc mode. There is no detent snap but some drag going through gnd position. Am I correct assuming this is a loose grub screw?

Ernesto expressed interest in a thread about the Type 555, so let's see if it'll fly! :-) For any bench project within the vertical bandwidth of the 555, it's my favorite oscilloscope and has been sin

Hello everyone. I have a 2467B that I bought a few years ago, and I never used the automatic measurement functions. Today I decided to test this and I think the scope is defective in this sector. When

The next stuff day event is tentatively set for saturday May 2nd. this time seems clear for most people, but let me know if there's a problem. This year we will also have "remote" stuff day, where tho

Here are some pictures that should give a pretty good idea of what it is - or at least what it looks like. https://groups.io/g/TekScopes/album?id=241896 I'll put up some descriptive info later. Ed

Hi to All, We all know the influence of sunlight on the red lettering and knobs of Modules. A spectrum of dark red to orange or even yellowish brown is sometimes the endresult. But I think the other c

Yesterday I bought a model 211 scope at the Dalton hamfest. While it works I need to replace the batteries. He seller already has the batteries out and I assume they are bad. It works without the batt

Not mine. https://www.ebay.com/itm/TEKTRONIX-TEK-7K-FLEXIBLE-PLUG-IN-EXTENDER-3-FT-M-F-Connectors-MK217-9/402117522405?hash=item5da01273e5:g:IUoAAOSwVjheVBeW

Hi to All, Some time ago I picked this Demo Board up without any instructions attached. On internet there are no "real" hits. Also Hakan Hintze didn't have any information on it. Maybe someone on this

I am not associated with this seller. I found a seller on ebay selling the Seimens 1AD3001-0A brushless motors for a reasonable price. The shipping is steep for USA Parcel Post, but the total cost to

Hi Folks - I have a 2465B that I have been laboring over for a couple weeks, and have made great progress on from its initial condition, which was pretty sad—flickering speckles where the display read

I'm not affiliated with the seller, just passing it along... https://sfbay.craigslist.org/nby/ele/d/sebastopol-tektronix-547-oscilloscope/7077862175.html

Hi all: I am considering a project create a more convenient '1103' Tekprobe capability for augmenting common O'scopes compatibility with the Tekprobe BNC interface. My idea is to make compact individu

Silly me. 140 volts has a glitch. measures slightly low with dmm but scope shows 120 hz 30 volt glitch. Its the power supply cap! its amazing the scope runs as well as it does with this fault.

Hi. Has anyone had any success repairing these modules? I could find little to no information regarding the servicing of them. Richard

Hi members, I have since many years a tek 454. Few years ago the trace stop to show. Since I have more spare time to dedicate to my small lab I would like to repair it. The first step was to repair th

Ed wrote... Tomorrow I will squirt cleaner in it. if no joy there, then scope the rails is next. Be aware that control cleaners may contain flammable ingredients. Years ago, I found out the hard way w