Appreciating the Hard Work of PF Mentors - old jim

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PF mentors play a crucial role in maintaining the integrity and quality of the forums by managing disruptive behavior and providing guidance to other advisors. Their efforts often go unnoticed, yet they are essential for fostering a respectful and constructive environment. The community expresses gratitude for the hard work of mentors, particularly highlighting berkeman's contributions to the Electrical Engineering forum. The positive changes in the forum's atmosphere since his mentorship are acknowledged. Overall, the appreciation for mentors underscores their importance in enhancing the forum experience.
jim hardy
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you folks do a lot of work that many of us seldom see... cleaning up after trolls, gently advising advisors, keeping it a dignified place.


Thank You !

old jim
 
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Thanks to all PF mentors and special thanks to brekeman in Electrical Engineering forum.
 
A special thanks to berkeman in his dedication to the EE forum. It's came a long way since he became a mentor.
 

Thread '3-terminal device external modeling'

Very basic question. Consider a 3-terminal device with terminals say A,B,C. Kirchhoff Current Law (KCL) and Kirchhoff Voltage Law (KVL) establish two relationships between the 3 currents entering the terminals and the 3 terminal's voltage pairs respectively. So we have 2 equations in 6 unknowns. To proceed further we need two more (independent) equations in order to solve the circuit the 3-terminal device is connected to (basically one treats such a device as an unbalanced two-port...
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Thread 'Question about the voltage between two charged capacitors'

suppose you have two capacitors with a 0.1 Farad value and 12 VDC rating. label these as A and B. label the terminals of each as 1 and 2. you also have a voltmeter with a 40 volt linear range for DC. you also have a 9 volt DC power supply fed by mains. you charge each capacitor to 9 volts with terminal 1 being - (negative) and terminal 2 being + (positive). you connect the voltmeter to terminal A2 and to terminal B1. does it read any voltage? can - of one capacitor discharge + of the...
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Thread 'Weird near-field phenomenon I get in my EM simulation'

Thread 'Weird near-field phenomenon I get in my EM simulation'

I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
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