This circuit can use a pendulum sensor. We found this configuration in a 1994 publication. The components used are common and the timing is given by the capacitor C1 which can be changed.
This stereo circuit with the 2002 integrated circuit. The power is 6 W per channel with 16 V of...
We found this circuit in a Motorola publication from the 70s. The circuit can be implemented with...
We found this temperature control in the SGS manual of linear integrated circuits of 1982. The...