开云体育

Dennis, Yes it seems Coiltronics is no longer what it used to be. Perhaps Wayback Machine could get you back some 10 years ago? (did not try yet) Regards, Milan

Could use some help here: I've always had persistent high frequency noise on my scopes. So far I've been focused on lower frequency signals with reasonable signal strength. Between BW Limit turned on,

How is the probe tip grounded? Excess inductance can increase the amount of ringing, so use as short as possible ground. Mike wrote:

For the HV supply needed to power the Spectrum Tubes (long thin glass tubes filled with various gasses) I own I need a HV transformer that was relatively common 25 years ago but not I can't find any

The 500 series in the ultrasound article with the female technician just about has to be a later 545. It definitely has an early style 1A1 plug-in installed. It isn't a 547 because there are no rocker

Somehow, I have accumulated more of these than I need as I have acquired various accessory kits for my 519 in a quest to have one complete set of accessories for my 519. So, in the interest of helping

I binged watched Stargate SG-1 a few weeks ago, and I did see briefly see which I believe to be a RM503, in the intro for an episode in season 3. Beginning of the episode started in Major Carter's

I can't even remember the model of the scope, but it was one of the old black fluted knob models, from around the time of the 512 or shortly after. It was about 1967 or so and I was repairing test

Just saw a 5 series in the movie Robocop 3 Also, briefly saw another 5 series in a YouTube video from the US Navy describing the nuclear depth charge experiment held off the coast of San Diego in

Oh, yep, there you go. Disregard my last message. That's what I'm talking about. I think this is one of the features of a pre SN B250K. I'm only guessing based on the now two examples. I don't know

Stephen, Compare your scopes TIME/DIV B-sweep knob and HORIZ DISPLAY A button to the picture of my pre SN B250K. There is no "LOCK KNOBS" text on them. I'm presuming this is a pre SN B250K feature. I

?ann f?s., 9. apr. 2021 kl. 20:28 skrifa?i durechenew via groups.io <durechenew@...>: According to the listing it’s the right part number? > > >

Correction: more like 19 V

The motor Siggi mentioned earlier is sold, but the seller has listed another one, that seems to be a 24 V version; in case someone is interested:

Perhaps a 560 series?

The second picture in https://www.ob-ultrasound.net/goldberg.html, the scope with a rectangular CRT, might be a 564B -- Jeff Dutky

I had a very similar experience with a large ceramic capacitor (about the size of a quarter) in the power supply of a 475 or 475A I was working on. I traced the bad supply rail to what appeared to be

On my 1S1’s heater regulator board, the pass transistor was mounted with the emitter pin touching the heat sink, which shorted collector and emitter and ran the tubes hot. Dave Wise

OK, not in a movie or advert, but in a Web page on medical ultrasound history. I do ultrasound as my radiology specialty. The early machines I used were "articulated arm" ones. These used an arm with

I can't believe nobody makes motors of the right size nowadays? It's not a magical diode motor is it?