This circuit is from American documentation from the 70s. This configuration appears in this section obtained from other sources. The signal is sinusoidal determined in amplitude by D1 and D2.
According to its author, this device indicates the amount of force applied to the sensors. The...
This low frequency doubler requires a 50 mV signal at the input. The circuit is from an old...
This is a circuit that should not be used for readers interested in a fair game. The circuit...