If you need a precise time, you could use a microcontroller. Of course, then all your friends will say “Could have done that with a 555!” But the 555 isn’t magic — it uses a capacitor and a comparator ...

In LTspice, I-V data can be measured using the .DC Spice command/directive. The ground clamp of DOUT1 is measured using the setup in Figure 4. In the setup, appropriate supply voltages were applied to ...

LTspice simulation of the K2-W Vacuum Tube Op Amp’s design reveals the mad science that created a commercial revolution in 1950s and 1960s analog computing. The K2-W's first-stage differencing ...