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I had a similar, but not the same, problem when calibrating my 2465A and traced it to a channel 2 relay in the input module. The problem ended up being a burr on one of the relays the was digging

You mean the power cord?? If so, Belden used to stock them, but probably not any more.? A lot of equipment from the sixties used them, particularly HP, and I've heard there are two different

Probes shouldn't make any difference to the ability of the scope to trigger. However, depending on whether the probe is a 1X, or a 10X probe, different attenuator sections in the scope will be used.

Yeah maybe it's better to do so. Nevertheless I thought about making an effort, since after the calibration the oscilloscope is working properly, apart from this detail. To be fair opposite to

Thanks Dave - I'll try the eBay link first - where can I get the old style 3 pin plug?

Thanks for that - I'll chase up the link.

Some of the trigger settings have high pass or low pass filters, and can be sensitive to the frequency of the waveform. Harvey

If your scope was calibrated 15 days ago by Q-Service, you need to get it back to them. I have a suspicion that what you are describing is a retrace problem (Z-Axis), but, I am having some trouble

Hi Chuck, Yes I have a problem about the trigger in the vertical amplitude in 200 mV and below, AC or DC input coupling at any horizontal timing setting. This will disappear only if I set Noise or HF

I have the 2465A manuals, op and service, and can not find any of what Mr. Panos sited in his inquiry, as well. But the manual I have is accurate as applied to my 2465A 'scope. GerryR KK4GER

Below please find a list of my 2465 - 67 manuals. I have others, but what I want to know is how do they differ. i.e NOT ONE IS IDENTICAL TO ANOTHER. I know I can compare them in bbedit or vi and

Here's the crazy thing. Most of these parts just came with the things I really wanted: 5 parts bins. I needed more bins to keep the parts that I actually use. The guy sold them to me for $5 each and

Thanks, Dennis! I hadn't seen this list before, and I'm sure it will come in handy. -Dave

I Have a Telonics SM2000 that I've never really played with.? I might have it's manual, I don't remember. -Dave

Is your scope working properly, or is it having some sort of problem? There are frequently problems with the CA3046 transistor arrays, which will cause glitching in the CH1 and 2 traces when they

https://www.ebay.com/itm/TELONIC-MODEL-2003-SWEEP-SIGNAL-GENERATOR-CONTROL-CHASIS-OPERATION-SERVICE-MAN-/143052382186 Glenn --

Hi I have a Telonics 2003 sweep generator - has anyone still got one? - or a manual. I have had it for years mouldering away in the store room. As it is dual voltage - I can run it here (but the

Hi Michael, There a lots of possible replacements provided the voltage, current, and power ratings are equivalent. The other thing to watch for is be sure the replacement pass transistor leads are in

I recently ordered some components with the same thought and intent, needed about 8 and had to order 50, though I noted on Hackaday. I'll email you to update the list with the components I have once

Just noticing that the web version masked my email address. So, just in case you didn't get it... it is my first name at my last name (berlind) dot "org".