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Actually you said a 465. Albert

If I went for performance at any cost, Analog Devices makes the AD5933 and AD5934 integrated network analyzers which are good up to 100kHz. Built as an oscilloscope plug-in, besides using the readouts

Hi Raymond, Another scenario is that you created an Accelerated Life Test by taking off the D-unit. The overvoltage protection will repeatedly switch off the PS, but at a several percent higher

It was designed by Bob Parker, who is still in Sydney: http://members.ozemail.com.au/~bobpar/esrmeter.htm Dick Smith is sort of the Radio Shack of Australia. It still exists, but no longer sells kits:

Search the archives (and the internet). ESR meters have been discussed many times in great detail on this forum (and on the web) since they are so handy for spotting bad caps and they have so many

Now I'm envious... Very nice. Post some sample curves. -- George Sent from my iPad

Rob, ? If you want to build a "device tester" in a 7K plugin, I suggest you google "Huntron tracker". Their earlier models were nothing more than a special-purpose scope" for testing devices. You can

<snip> Hello, Raymond-- You may be able to locate the source of the hissing noise if you use a two-foot length of 1/4-inch diameter insulating tubing as a "one-ear stethoscope". Place one end in your

Hi Raymond, I think some component turned bad when you exercised the scope. It may have been stored unused for a long time. It can be a cap or diode, we don't know yet. You have come this far which is

wrote: The 7S12 will require a pretrigger s

*Now* I know what it sounds like but couldn't think of: It's like an ultrasonic cleaner, though not as loud and not quite as steady volume-wise. Raymond

Hi Albert, I read about the tick mode in the manual. It's definitely not tick mode. It's like a HV hiss and like the sizzling sound that PS's (coils/transformers) sometimes produce when overloaded -

John B <jbarnes@...> ha scritto: Hello John, I just subscribed the TekScopeArc2, thank you. Oh that is similar to AN97 I have seen. As for sampling, how much is it diffucult to setup a

David I'm suspecting also that the scope input characteristics change with changing attenuations, see the reply to Mike. Thanks, I sort of figured it out with the 2/3c notion I had somewhere stored in

Mike <zuckerme@...> ha scritto: Ok I removed the cap and the pulse was the same, with the spike still there. Thanks, but now I'm thinking that can be also a problem, I explain better later my

If you are interested in the current Bob Parker ESR meter designs, have a look at the EVB meter. It comes from Portugal as either a kit or as a finished ESR meter for a very fair price. I also have

Hi Dennis, There are five parameters which affect frequency accuracy of high quality oscillators like OCXO and TCXO (in falling importance): aging, initial offset, temperature variation, capactive

Just for curiosity's sake, has anyone done a side by side comparison between the the K2574 and the "Blue" meter? The "Blue" meter kit is about $10 cheaper. Not that I'm a tightwad, but that's $10 that

The SMPS will be in tick mode then. There is an old message about which load at the big connector would work. Raymond, you probably confuse a hissing sound with those "ticks", about 2 per second. My

Steve, Thanks!!!! What a great group! Mark