Baluncore's latest activity
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Baluncore reacted to DaveE's post in the thread Beauty of old electrical and measuring things, etc. with
Like.
Perhaps the most risqué HP ad. Circa 1972. I recall this from a poster in the hallway of the Caltech EE building when I was an... -
Baluncore replied to the thread Vector/Phasor Addition.I don't believe corrective real powers are the way to go, even if you can make it work. Real powers of real numbers involve a Log(), a...
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Baluncore reacted to Rotem Tsafrir's post in the thread Weird near-field phenomenon I get in my EM simulation with Like.
That’s seems like a great explanation. Thanks a lot!
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Baluncore replied to the thread Weird near-field phenomenon I get in my EM simulation.The group velocity propagates at the speed of light. The phase velocity moves at between the speed of light and infinity. Consider a...
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Baluncore reacted to Swamp Thing's post in the thread Weird near-field phenomenon I get in my EM simulation with Like.
Could it be something analogous to the "superliminal scissors" thing where the point of intersection moves faster than light? Say we...
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Baluncore replied to the thread I Mechanism of Energy Conservation in Zero-Amplitude Sum of EM Waveforms.Where two phasors or vectors cancel, the result is not zero, it is just vanishingly small. Any phase or amplitude noise present, will...
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Baluncore replied to the thread B Water Wicking between two containers.Welcome to PF. You are fighting an uphill battle. If the wick at the top is in the water, water will flow from the high to the low...
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Baluncore replied to the thread Ground loop on electronic audio systems.This was not a true hum loop, but was a more worrying situation. I noticed a "hot to the touch" power cable on a newly installed faulty...
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Somebody, explain the joke to me.
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Baluncore replied to the thread Earth ground resistance measurement.No, it does not. So there are two unspecified terminals. The terms 'former' and 'later', required that you earlier identify the two in...
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Baluncore replied to the thread Beauty of old electrical and measuring things, etc..The 12AX7 continues to be used in guitar amplifiers today. I don't know why they worry you, it is just a matched pair of N-channel FETs...
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Baluncore replied to the thread Defining Analog Computer Power.The bandwidth of a computational feedback loop, and the settling time of a digital to analog converter are relevant concepts.
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Baluncore replied to the thread Earth ground resistance measurement."Semi-spherical"? No good can come from a word that is a misbegotten hybrid of two languages, Latin and Greek. Semicircle and hemisphere...
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Baluncore replied to the thread Earth ground resistance measurement.Confusion arises in the first diagram, where equipotential lines cross the deep conductive electrode. To measure ground resistance...
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Baluncore replied to the thread B Ultrasonic wave and regular sound wave.Welcome to PF. In air, water, or in solids? All low-amplitude sound waves propagate at the same speed, independent of frequency. In a...