Hi Everybody, Inspired by recent talk of the admirable 500 series, I'd like to share my story and some questions that keep bugging me. I'm in Eastern Europe. A month ago a local trader in scavenged

Just as I always try to remember to set my Scope coupling to Grd and Vertical amp to min sensitivity ... I do the same with SA ie max Attenuation at 'turn-off'. Also, I have built my own DC block with

Hi Jean-Paul, You mean that the 'scope has been adjusted some (long) time ago and now hor. and vert. deviation are off? If not, and the 'scope is "still off", as you write, after cal, something has

Gentlemen, My 465 has a stuck coupling switch - it developed during a project that I am working on. It's stuck in the AC position. I don't want to force it. I haven't taken the unit apart yet but with

I'm looking for a few TM500 modules SC504 or 503 scope A multimeter module (DM501,502, etc) PS503 power supply (2, actually) Working would be nice, but not necessary. I'd be happy to take

Raymond and Victor, Many thanks! I have done full cals on these but some years ago. Am Aware of cooling of A1 PCB, U800 etc with case open. I have TEK manuals printed originals, PG506 and

Thanks Miguel in fact I think I buy a BNC male to SMA female adapter. Greetings and happy holidays Attilio

good morning to the whole group I ask for help because I'm not understanding anything anymore .... I have a pg506a that makes a strange defect I turn on the pg506a and connect an oscilloscope (I have

Thanks Chuck, you made it clear that I don't have to rely on a DC blocker, but I have to be the first protection of the 7L13's first mixer. I keep in mind all your considerations. I understood that

Found the solution by myself. Here are the steps: 1) Remove all the knobs from the front panel. 2) Unscrew all the bolts securing the pots. 3) Carefully pull out the front panel (take care do not

Hi Jon, Warming up with case open would only apply to settings via trimcaps and R-trimmers. You may check if those are in cal by going to the applicable points in the adjustment routines. If they are

I would warm it up with the cover off and a small muffin blowing at A1.

Jon, There are many more trimmers to adjust during a calibration. You should pick up the service manual, you can find a useable free scan on the Tek site. Chapter 5 lists the CAL steps 01 through

Bonjour a tous: Have some 2465B that are out of VCAL only or HCAL perhaps a few percent. Been a while since did cals on these. Do it with case closed after warmup 30 min to stabilize? Are the

A couple of things: First, you don't have to get so worried about accidentally putting DC on the mixer. It is safer, and better to be more conscious of what you are doing when you make measurements

Hi all. I'm looking to build an 015-0670-00 Feed-Through Adapter for testing the AM503B Current Probe Amplifier TM500 plugin modules. I'm hoping someone has one they can take a peek inside and take

Tte cheap opción if bandwith os importante os a BNC ti SMA adaptar and a SMA DC blocker

Hi all, I just picked up a 067-0508-00 Amplitude Calibrator and I believe it was rack mounted. It doesn't have the outer cabinet. I don't know much about the interchangeability of mounting and cabinet

Sorry, that's 7904 not 7004

Bruce Atwood added the album 7004 bezel: Is this an add-on? Can it be removed? photo in https://groups.io/g/TekScopes/album?id=258576