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Re: Cal Lab Magazine - International Journal of Metrology
One of the earliest schematics I crossed was the Howard W Sam's Photofact for a 1951 Westinghouse television. It used the lower case letter 'u' for? mu, thus a 10 microfarad (microFarad) capacitor
By Chuck Moore · #370 ·
Re: Cal Lab Magazine - International Journal of Metrology
wrote: Many years ago I worked in a computer department The manager, who I had very little respect for, asked me for the heat output of the computers. I emailed an answer in watt. I heard from someone
By Dr. David Kirkby, Kirkby Microwave Ltd · #369 ·
Re: Cal Lab Magazine - International Journal of Metrology
Neither are correct, as it should be mW or MW - in the case of a small amplifier, the output power is certainly not going to be MW or even kW do Watts (RMS) is one of my pet hates, as RMS power is
By Dr. David Kirkby, Kirkby Microwave Ltd · #368 ·
Re: Another Q-meter info source
Thank you. 73 (Regards). Max K 4 O D S. I've Never Lost the Wonder.
By MAX · #367 ·
Re: Cal Lab Magazine - International Journal of Metrology
I was also corrected once on the time base side of things: ns = nano second nS = nano siemens apparently, some areas this is the unit of interest and is taken quite seriously. Eric Sent: Wednesday,
By Eric · #366 ·
Re: Cal Lab Magazine - International Journal of Metrology
The confusion of Mw and mw is one of my pet peeves. I often laugh out loud when I read a catalog description of a small pc board amplifier that delivers 500 Mw. LOL. What is the general opinion about
By MAX · #365 ·
Re: Cal Lab Magazine - International Journal of Metrology
Dave, A few decades ago, one of my tech writing managers remarked that style rules were actually guidelines, kind of like the pirate's code from "Pirates of the Caribbean." It was one of the very few
By Jim Strohm · #364 ·
Re: Cal Lab Magazine - International Journal of Metrology
Thank you. 73 (Regards). Max K 4 O D S. I've Never Lost the Wonder.
By MAX · #363 ·
Re: Cal Lab Magazine - International Journal of Metrology
Such as furlongs per fortnight. Leon Robinson ?? K5JLR Political Correctness is a Political Disease. Politicians and Diapers should be changed often and for the same reasons.
By Leon Robinson · #362 ·
Re: Another Q-meter info source
OK, I misspoke a little yesterday about the full nature of the article in the August QCWA newsletter. The article with the Q meter info is the "Vacuum Valley" article, and the Q meter info is toward
By Jim Strohm · #361 ·
Re: Cal Lab Magazine - International Journal of Metrology
And as previously stated mF and NF are not the same Lester B Veenstra K1YCM M?YCM W8YCM 6Y6Y (Reformed CTM1) lester@... 452 Stable Ln (HC84 RFD USPS Mail) Keyser WV 26726 GPS: 39.336826 N
By Lester Veenstra · #360 ·
Re: Cal Lab Magazine - International Journal of Metrology
I said earlier that I thought the s should not be there, and cited an BIPM brochure, which did *not* actually substantiate my statement. However, this document from the BIPM does.
By Dr. David Kirkby, Kirkby Microwave Ltd · #359 ·
Re: Cal Lab Magazine - International Journal of Metrology
It should be uF, nF, F etc. The person who sent you the email is correct. Look at the SI brochure I sent earlier. https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf Of the 7 base units
By Dr. David Kirkby, Kirkby Microwave Ltd · #358 ·
Re: Cal Lab Magazine - International Journal of Metrology
In that case, either would be understood. In other cases, not necessarily, e.g.: - multipliers, especially m/M in conjunction with frequency, e.g. a 10MHz oscillator with 10mHz resolution - a personal
By Tom Gardner · #357 ·
Re: Boonton Q Meter Thermocouple & Precision Resistor
In the model 260, the oscillator supplies 1 amp of RF current to produce 20 mV across the 20 milliOhm LC series resistor. This would be 20 milliWatts across the resistor, but 200-300 milliWatts in the
By John Kolb · #356 ·
Re: Cal Lab Magazine - International Journal of Metrology
or, rather, F for farad, if we're going to stick with convention. :) -- Prof. Thomas H. Lee Allen Ctr., Rm. 205 350 Jane Stanford Way Stanford University Stanford, CA 94305-4070
By Tom Lee · #355 ·
Re: Cal Lab Magazine - International Journal of Metrology
F for Farad is correct. Wilko
By Wilko Bulte · #354 ·
Re: Cal Lab Magazine - International Journal of Metrology
Hmmm, f or F? I'd defer to IEEE and whatever other standard is applicable and appropriate. I've been a tech writer since the late 1980s and nowadays I refuse to get into the editorial and grammar
By Jim Strohm · #353 ·
Re: Cal Lab Magazine - International Journal of Metrology
Thank you. 73 (Regards). Max K 4 O D S. I've Never Lost the Wonder. Sent: Tuesday, August 30, 2022 7:44 PM To: [email protected] Subject: Re: [Test Equipment Design &
By MAX · #352 ·
Re: Making a Q-meter / References etc
If you think of the input and output signals being represented in polar form the value of R is always positive regardless of the value of theta. This way you can enter the two voltages as positive
By MAX · #351 ·