Hi all, Having repaired the power supply I've now powered the 'scope up. I've measured the calibration signal on all 4 channels, the buttons and switches all seem to work and the self tests

(continued) No pronounced resonance with SG503 either. Albert

So having repaired the power supply I've powered the 'scope up and tested the LV outputs on J1204, supplies are as

There's a lot of stuff you don't need to do unless you want to. Remember that the analog scopes you're checking, unless they have digital counters (7D15, et al), you're deciding whether or not you

Outside calibration is complex situation, especially since it is understood differently by the providers of the service, and their customers. this disconnect can be severe, and often leads to some

Dennis, in your pictures I see about 3 periods of oscillation in 20 ns. Isn't that corresponding to 150 MHz in stead of about 300 MHz? (I hesitate to bring this up...). I tried this with similar

Sorry I mixed up 200, all of my carts are K212 Jon

Hi Dave, Ok that changes a LOT of things. If you have access to that lecroy you should be set to do the calibrations on all the plugins. A 6.5 Digit DMM is plenty for the PG 506 did mine on a keithly

Thank you for the recommendations all! I took a look at the neck as best I could without fully removing it and I don't see any spare magnets or damage inside the tube neck itself. That said, I will

Hi all, is it possible to install and adapt a P6302 probe tip into a P6042 tip? The transformer is bad on my P6042 probe. Thanks

Hi Albert, interesting stuff and info but I have the coming period almost no time for my hobby. An urgent repair in the garage and my car, so when there is more time I dive in again and post the

I tried doing that when I received my 2465B a while back. The combination of the 2465B and the 200C seemed very unstable. I bought a K212 cart for a very reasonable price and that works just

ISTR that there are a number of people who have four types of colour sensors which extend vision into what most call the low-UV. David

Until a few weeks ago, I had a 7704A on one of the carts meant for portables (forget the model, but it's the one with larger rear wheels).  I needed extra straps to anchor it down and careful

Hello, good question: I have several 2465/7/B and carts. Not a problem to mount the scopes, feet and straps need careful fiddling to position. I recall t scope rests about 1" forward of

I might be a bit of an odd bird: I quite enjoy twiddling the variety of pots vs. pure automation. I work in the IC industry, so I get my fill of high level integration, and have spent many hours in

Keysight and Tektronix will calibrate anything for anyone that brings money. They are pretty expensive though. There are good third party calibration labs, and bad ones. Search for ones with NVLAP or

Hmm, Seems kind of a mixed bag then. I would love to get my own level and time references setup. I have only superficially heard about using GPS based clocks/timing. Seems this might be my

For timing a good (lots of digits) frequency counter hooked to a GPSDO will get you where you need to know then you time reference Is based on the GPS clocks which are HIGHLY accurate. At least WAY

Dave, Time standards are easier than ever now, as there are a plethora of GPSDO products around. That will be orders of magnitude better than needed for aligning cathode ray o-scopes. I adjusted the