This timer, like the previous circuits, uses a currently uncommon integrated circuit. The time is given by capacitor C1 and R2 which has the range of values indicated in the diagram.
Found with variations on this site, this circuit was taken from an American documentation from the...
This simple voltage regulator or stabilizer uses only two component and can source up to 100 mA to a...
May 2016 - It can be obtained from Mouser Electronics new display 1092 from VDC. The new LED...