Products > Test Equipment
Test Equipment Anonymous (TEA) group therapy thread
Specmaster:
--- Quote from: tautech on May 16, 2018, 07:43:20 pm ---
--- Quote from: Specmaster on May 16, 2018, 06:25:26 pm ---
--- Quote from: mnementh on May 16, 2018, 05:52:10 pm ---
mnem
*Out standing in his field*
--- End quote ---
What, you have a field as WELL :o
--- End quote ---
It's not uncommon. :P
--- End quote ---
Its pretty easy to see that you're not a townie :-DD
Specmaster:
--- Quote from: bd139 on May 16, 2018, 08:13:03 pm ---On the subject of Philips, I think we should roll back technology to 1960-1980. Far more interesting and I could have landed a job there instead and done some analogue stuff rather than ending up in software.
On a side note, I've been playing with a re-thinking of the Tektronix 130 LC meter with some slightly more modern parts? Why, for the hell of it! Plus I'm getting bored of sitting in front of Kicad. I'm much more happy with a pencil, some paper, a calculator and a soldering iron in hand.
The 130 is a neat little tube based device which uses a pair of oscillators running at around 140KHz. You null the fixture by zero beating them with a variable capacitor. These drive two inputs on a mixer, an LPF and then a schmitt trigger and then a pulse integrator. This ultimately gives a very linear reading of the difference frequency between the oscillators. You connect the DUT, a low value L or C to one of them and the second oscillator slows down. The difference is recorded as a voltage and deflects a panel meter.
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Theres a rather nice (but large) HP LCR meter in the Philips auction, in fact the same type as in that rifa video of Simon's that you posted earlier.
bd139:
Yeah that’s the one I was researching when I found Simon’s video :)
mnementh:
--- Quote from: tautech on May 16, 2018, 08:08:12 pm ---
--- Quote from: mnementh on May 16, 2018, 07:18:24 pm ---
--- Quote from: Specmaster on May 16, 2018, 06:25:26 pm ---
--- Quote from: mnementh on May 16, 2018, 05:52:10 pm ---
mnem
*Out standing in his field*
--- End quote ---
What, you have a field as WELL :o
--- End quote ---
That's what the tax bill sez. Now if it just wasn't full of all these pesky Christmas Trees somebody planted 30 years ago...
mnem
Also, bears.
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They'd be ready for timber harvest here @30, how old do they need to be there ?
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Not sure they'll ever be big enough; they're actual Christmas trees. Pines and firs intended to be planted whole as landscaping. I suspect they may be some midget variety, as they seemed to spring up to 6-10 feet in no time, then lingered thereabouts for years.
mnem
*Back out into the suck*
Cerebus:
I'll just leave this here.
Today's XKCD:
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