Maybe if we recap the planet the whole world will sound better
Don't worry about it. Not in the signal path.
The Capacitor Abyss-yes, can it get any better?
- Thread starter Blue Shadow
- Start date
Don't worry about it. Not in the signal path.
toxcrusadr
Omelette au Fromage
We should recap the power supply though!
I got a new Hakko soldering station. Who's with me?
Won't need to do that for about five billion years, though.
I hope you're going to do that rebuild with one of those giant Ungar tips for the old-fashioned irons. Gonna otherwise take a while to heat up...
gslikker
Super Member
The Elna company hired a Roman for their capacitor called Silmic II (in about 10 years we will have Silmic III and IV).
From the datasheet: "all lead wires oxygen free copper" , so whether it is lead wires containing copper or Roman copper wires containing lead, I have no idea.
From the datasheet: "all lead wires oxygen free copper" , so whether it is lead wires containing copper or Roman copper wires containing lead, I have no idea.
Binkman
Lunatic Member
List of obsolete units of measurement.
https://en.wikipedia.org/wiki/List_of_obsolete_units_of_measurement
I wonder how many or what terms of measurement didn't make the definition list? Like my unit for lack of force or applied effort momentum required to work on or move an object; is the 'Binky',
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toxcrusadr
Omelette au Fromage
Seems I recall the Barn (a measure of cross sectional area of an atom) was so named by atomic physicists joking about the particle accelerator not being able to
'hit the broad side of a Barn'. Or, it was named after a physicist named Barn, I don't know.
The Brits have some great old ones, like the Butt, a measure of volume.
Furlongs per fortnight is one of my favorites for measuring speed.
'hit the broad side of a Barn'. Or, it was named after a physicist named Barn, I don't know.
The Brits have some great old ones, like the Butt, a measure of volume.
Furlongs per fortnight is one of my favorites for measuring speed.
toxcrusadr
Omelette au Fromage
Closerads.
Great list of obsolete measurements. It seems like the Pennyweight was expressly designed for tracking force- 1.555 grams. They ignored a lot of depreciated units like the micron (1 micrometer). In spite of that, everybody in my business has been using microns for decades and shows no sign of stopping. We're pretty fond of angstroms too. As for anti-capacitance, we already have the Henry. Unlike matter and anti-matter, if you put them together they rarely explode, just resonate.
Well, duh!
Without angstoms how would one be able to properly measure distance between particles in the luminiferous aether?
toxcrusadr
Omelette au Fromage
The State of Missouri (and many others) was first surveyed in Chains. There was a standard chain used for this, I forget the length, something like 32 ft 8-1/2 inches or some such.
I learned something today!
https://en.wikipedia.org/wiki/Chain_(unit)
The Mouser capacitor nebula is still foreign to me though...
toxcrusadr
Omelette au Fromage
"The chain is a unit of length equal to 66 feet (22 yards). It is subdivided into 100 links[1][2] or 4 rods. There are 10 chains in a furlong, and 80 chains in one statute mile.["
Well, I was close. Not really. Interesting that all those units are related to each other. I've heard of them all but did not know that.
Well, I was close. Not really.
Interesting that all those units are related to each other. I've heard of them all but did not know that.
jeromach
With sufficient thrust, ducks fly just fine
I'll call an explosion an out of control resonance.
At least, that's what the last amp on my bench told me
roger2
.
Which testing frequency for electrolytic caps?
I test every cap that I remove and install on projects for uF and DF, and record those values on a project sheet. My humble BK Precision 878 can test caps at either 120Hz or 1kHz. The instruction manual suggests using 120Hz for 10uF and larger, and 1kHz for caps smaller than .01uf. No mention of which frequency to use for caps between .01uF and 10uF.
120Hz or 1kHz? I would prefer to chose one test frequency or the other, if that is feasible, and be consistent going forward. Would 120Hz be OK for caps down to 1uF? Or do I truly need to use both test frequencies depending on capacitance value?
I would like to know the opinions of @ConradH and @Oilmaster on this question if possible
I test every cap that I remove and install on projects for uF and DF, and record those values on a project sheet. My humble BK Precision 878 can test caps at either 120Hz or 1kHz. The instruction manual suggests using 120Hz for 10uF and larger, and 1kHz for caps smaller than .01uf. No mention of which frequency to use for caps between .01uF and 10uF.
120Hz or 1kHz? I would prefer to chose one test frequency or the other, if that is feasible, and be consistent going forward. Would 120Hz be OK for caps down to 1uF? Or do I truly need to use both test frequencies depending on capacitance value?
I would like to know the opinions of @ConradH and @Oilmaster on this question if possible
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Most electrolytics of any value are spec'd at 120 Hz unless you're testing esr, usually specified at 100 kHz. When in doubt, check the data sheet if you want your numbers to match their numbers. Older testers like my GR 1657 had a choice of 120 Hz or 1 kHz. Newer testers often have more options. On some even older testers 120 Hz was the only option!
