Baluncore's latest activity

The ultrasonic transducer sits between the tank and a counterweight. The counterweight can usually be adjusted to match and work against...

Maybe reaction wheels are one way to control the ball. https://en.wikipedia.org/wiki/Reaction_wheel

Look for HgCdTe (MCT) photodiodes, or LW IR LEDs. Multiply the room temperature dark current, (probably less than 10-9A) by 0.25V to...

I missed this thread earlier, so now is the time to acknowledge all the previous work, before I attempt to handwave a consistent, and...

Solar panels do not work in the dark. They are designed to operate at visual wavelength, in sunlight. Indoors, there will be thermal...

There is little energy at those wavelengths because the voltage is low. Electron energy can be specified in eV. Longer wavelengths...

This LTspice model is sufficient to model the signal passing through a via. T1 is the line on one side of the PCB. T2 will become the...

Tektronix produced this 114 page reference. Time-Domain Reflectometry Measurements, by James A. Strickland...

Here is a simple TDR simulated in LTspice. Remove the .txt extensions from both files, then run the LTspice file.asc Start by changing...

TDR is a plot of impedance (driver voltage) against reflection time. Z = √( L / C ) You cannot say if it is the inductance or the...

What you show is a 3-layer PCB, which is not used in practice. This point made by @Baluncore should be emphasized. It is generally a...

Then you would have seen a "tripler" circuit in a CRT monitor, driven by the horizontal output transformer...

That is because the output voltage is to be negative relative to ground, as in the diagram in post #1. I think in post #1, they are...

You have two tracks with known impedance, joined through the PCB by a short cylindrical via. The via will probably not match the...

Welcome to PF. This basic schoolwork question does not involve detailed values like frequency and parasitics. It is just a basic...