"Kiethley" 35080B kVp divider

The place to be when you have TEA. Discuss all kinds of test equipment.

Important: Use tags for the type of equipment your topic is about.
Forum rules
Use tags for the type of equipment your topic is about. Include the "repairs" tag, too, when appropriate. If a new tag is needed, request one in the TEAdministration forum.
Post Reply
User avatar
AVGresponding
Posts: 432
Joined: Sat Oct 22, 2022 7:30 pm
Location: The Yorkshire

"Kiethley" 35080B kVp divider

Post by AVGresponding »

My latest, semi-accidental (left a maiden bid and it won) acquisition, a Keithley 35080B kVp divider.

What the eff is a Keithley 35080B kVp divider, I hear you ask? Well, since you ask, here's what the manual has to say:

"The Model 35080B kVp Divider is an alternative to high-voltage divider tanks. It provides a safe, noninvasive, fast measurement of kVp without endangering personnel and/or equipment. Its use is primarily intended for x-ray machine service and calibration."

Given x-rays are in the peta- and exa-hertz range, I feel confident in saying this is the highest operating frequency TE most of us have ever seen...

From the outside it's fairly unremarkable, the only real things of note are the sensor contacts, which look like gold, square, pushbuttons:

Image

Those are 4mm banana jacks above the sensor contacts.

Backside view, sans cover:

Image

A close up on those TO-18 packages. Weird heatsink, huh? Oh, and by the way, those aren't transistors. They are all SCRs, 2N2930 Sorry, tired eyes, they are 2N930 BJTs... I guess those transparent beads on the capacitor legs are to prevent movement?

Image

And finally inside the sensor modules, not very much to see:

Image

It seems to be very slightly out of cal limits, but otherwise functional (as far as I can test it without an x-ray machine). Worst case scenario, there's quite a few nice parts inside, and the case is metal and could be repurposed.

Manual: https://www.flukebiomedical.com/sites/d ... ng0000.pdf
You do not have the required permissions to view the files attached to this post.
nuqDaq yuch Dapol?

(╯°□°)╯︵ ┻━┻
Post Reply