Why we pay professional, qualified, registered sparkies
- Thread starter SimonH2
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Err, don't you mean violet?
Yes, I think that's right, but virtually only with TN-S supplies. With a TN-C-S supply, the supply-side fault path is identical in the two cases, so that anything affecting PEFR will similarly affect PSCC, and vice versa. AFAICS, only a faulty neutral connection between cutout and DB/CU could result in PEFR>PSCC (as measured at DB) in a TN-C-S system.
Kind Regards, John
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As I said last night, I think the end band is either silver (10%) or nothing (solder plus ageing). Otherwise, well done
Kind Regards, John
... and, of course, the 'resistor colour code' is not only used for resistors - capacitors (and sometimes other components) also sometimes use it. Any takers for:
... and, again, the 'colour code' does not necessarily use colours. How about this one (apologies for quality of pic - the component is tiny):
Kind Regards, John
... and, again, the 'colour code' does not necessarily use colours. How about this one (apologies for quality of pic - the component is tiny):
Kind Regards, John
Not sure on this one. I don't know what the rules on direction of reading and meaning of bands are for color coded capacitors (i've only ever seen a handful of such caps anyway)... and, of course, the 'resistor colour code' is not only used for resistors - capacitors (and sometimes other components) also sometimes use it. Any takers for:
That will be 100000 pF or 100 nF
What really gets me though is that surface mount capacitors don't seem to be coded AT ALL.
Start at the top and look at just the first three bands. Without looking it up, I can't remember how to decipher the 4th and 5th bands, but they don't relate to the value of the capacitance.
Indeed, or even 0.1 μF
... and a good few other components these days. I suppose some may be just too small to mark.
Kind Regards, John
Doh, doh, doh.
Does anyone else have a problem where they think one thing and the fingers type something else ?
Yes, Yellow is 4 and 7 is violet. And I can't even use the excuse of hitting the wrong key as I wasn't using a numeric pad when I typed 27k.
It happens to all of us! I suspect one of the issues here is that your subconscious (which has some control over your typing fingers) is pronbably most familiar with the E12 resistor series - which, of course, includes 27k, but not 24k!
Kind Regards, John
Does it work for liquorice allsorts?... and, of course, the 'resistor colour code' is not only used for resistors - capacitors (and sometimes other components)
That'd be fun.
"Pass me a 30KΩ, please."
"Pass me a 30KΩ, please."
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