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Whoops, forgot the new link: /g/Yokogawa-Hioki-Anritsu-Kyoritsu

I have just expanded the scope of the new group to cover Yokogawa, Anritsu, Hioki and Kyoritsu gear. I figure we may as well cover a bunch of the main brands of Japanese equipment in one place. Jared

I've been recently acquiring more Yokogawa test gear and have been talking to Yokogawa to obtain old manuals etc, so I thought maybe I'd make a group to put the info and for others to join in too. I

Dave,? Hold on I am going to do some pliminary work on the Tek 2445. I am going to try cleaning the switches with Deoxid D5 and then see what my max be is.? Walt? Sent from the all new AOL app for

Harvey,? Again thanks for your help. Sorry for the late response I was fingers deep in breaking down the Tek 2445. I found a copy of the service manual but it didn’t contain a copy of the

You can of course, still use a SIne wave signal, set for (say) 40 or 50MHz. (A 20MHz BandWidth limit should noticeably reduce it's amplitude, compared to "Full" bandwidth mode.) By comparison, a

PM3410 - I've been watching eBay UK for ages for one ? D.

To get philosophical for a moment, a scope is a V-vs-t instrument, so the fidelity of the time domain response is paramount. As such, frequency domain measurements are merely an indirect analogue of

IIRC, this scope has a calibration output that increases frequency as you reduce the timebase, so that it always "looks" the same on the CRT until you get to the shortest sweep times, where rounding

OK, then that makes all sorts of sense.? With the RF generator, if you can put out a 10 to 20 Mhz signal, then see what happens with the bandwidth change.? It ought to go down in amplitude with the

Harvey,? I don’t have a function generator. My WaveTek function generator does Just RF. Also I don’t have a cad program on hand.? I plan on taking the cover off the scope. I can then blow out

That ought to do it. Harvey

I can, but first, you realize that this is nothing more than a bandwidth check and a very crude one?? Your function generator ought to go to to 10 Mhz or so. If it does triangle waves, you can use a

Something like this should be OK. http://marcusjenkins.com/tdr-pulse-generator-for-testing-coax/ Make sure the IC is properly decoupled with minimal lead lengths. The rule of thumb for the risetime of

Harvey,? Can you draw that up for me. I have to be very careful since my right hand shakes when it wants to. I do have a plug in breadboard that I can use. The Schmidt trigger chip I will look a see

Can you breadboard TTL? 1K in series, 5.0 volt P-P sine wave, diodes to VCC and GND to limit what the gate input sees, use any schmidt trigger (74LS14, etc) to produce a pulse output, then run that

Harvey, My WaveTek does not support square wave generation.? Walt? Sent from the all new AOL app for iOS

Ok, how fast is the wavetek signal generator? if it's at least 2 mhz, and can put out a square wave, then try that.? You're looking for significant edge rounding at any frequency from 2 Mhz on (the

Harvey, The test equipment I have is:??1. Wavetek Signal Generator?2. HP 410C VTVM?3. Sinometer Frequency Counter?4. Tel 2445 Scope? It looks like I will have to purchase some more equipment if

I'd say anything between 10 and 20.? What you're looking for is the effect of the 20 Mhz bandwidth reduction.? The higher the frequency, the more obvious. Do NOT couple a transmitter directly into