Nigel, how come the "Insert math" button options doesn't have the OHM symbol? It shows in the Tab, but not among the options:
I see "small" Omega, \[ \omega \], but not capital Omega.
I think blind people who cannot see a decimal point or blind printers that could not print a decimal point wrote the silly 4R2 instead of 4.2 Ohms.
They did capacitors the same: 4n7 instead of 4.7nF. They never wrote frequencies silly like that. 55Hz5 instead of 55.5Hz?
Henries?? Sizes?? Weights??
I think blind people who cannot see a decimal point or blind printers that could not print a decimal point wrote the silly 4R2 instead of 4.2 Ohms.
They did capacitors the same: 4n7 instead of 4.7nF. They never wrote frequencies silly like that. 55Hz5 instead of 55.5Hz?
They don't generally need to print frequencies on small components - it's obviously a VERY good idea, as it's much clearer than a decimal point that might, or might not, be clearly visible.
Well, specks of dirt and grim can look like decimel points. Decimel points can also wear off or just not be printed properly to begin with. I've seen more than one component with imperfect printing.
Yeah, I was looking at a board I had assembled checking resistor values in a section that wasn't working right. "What the heck is that? It's definitely not the resistor I specified!" Oops.
They don't generally need to print frequencies on small components - it's obviously a VERY good idea, as it's much clearer than a decimal point that might, or might not, be clearly visible.
I had an AM/FM/SW Blaupunkt car radio that was laid out in wavelength, 1950's style radio was in cps (cycles per second.
With real blueprints, it was easy to loose a decimal point. I remember blueprints for an 1980;s ISI scanning electron microscope. then audio equipment done in the 80's too, but I have some never published stuff.