We found this time base of 0.1 to 90 seconds in a circuit manual from the 90s. The single-use transistors used are common and the frequencies given by the adjustment by the potentiometer.
In the figure we have the transmitter and the receiver for an optical audio link via infrared. The...
Mouser Electronics offers a vibration sensor which is considered the smallest in its class. This...
This power supply for those who want to feed and recover 5 ¼ floppy disks was found in the...