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Re: Another display type ticked off the bucket list
Posted: Thu Feb 05, 2026 1:05 pm
by tggzzz
tggzzz wrote: ↑Wed Feb 04, 2026 5:42 pm
The existing BT connections were enamelled wire twisted pairs, wax paper insulation, lead sheathing. BT technicians gave me a section when they were removing some
Re: Another display type ticked off the bucket list
Posted: Tue Feb 10, 2026 9:56 am
by tggzzz
EC8010 wrote: ↑Sun Feb 01, 2026 7:09 pm
Very pretty. Shame about the "Kelvin, g, s" legend; it must be American. I have a (very mild) hankering for a torsion wire galvanometer as used at school with its illuminated line moving a glass display.
Yes, that irked me too.
Similarly measuring time in mhos is one of my bugbears. As is measuring frequency in mHz - especially since one of my instruments is careful to distinguish between MHz and mHz on the same results display: 621mHz deviation from 10MHz.
https://www.eevblog.com/forum/testgear/ ... msg3194292
Victor Meldrew is becoming my hero.
Re: Another display type ticked off the bucket list
Posted: Tue Feb 10, 2026 2:19 pm
by EC8010
Time in mhos? I don't believe it!
I then wracked my brains and remembered that mho was an old-fashioned unit for conductance, but the proper (SI) unit is siemens (S), not seconds (s).
We need Boltzmann's constant (k) to calculate resistor noise, requiring absolute temperature in kelvin (K), and remembering to convert from kilohm (k) when appropriate.
Re: Another display type ticked off the bucket list
Posted: Tue Feb 10, 2026 2:35 pm
by tggzzz
I ought to start referring to capacitance values in Jars.
https://en.wikipedia.org/wiki/Jar_(unit)
I wonder if it is coincidence that my recent Sullivan capacitor is up to 1000Jars in 9Jar increments?
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