R1 may be 10k and R2 100k. The transistor can be the BC548 and instead of the small lamp we can use a series LED with a 1k resistor. D1 is germanium and C1 is 10 nF. C2 can be 47 nF.
This circuit can be used with older tape player systems to recover media converting for digital...
A configuration like the one used with the 4013 is also suitable for the 4027. The amount of time...
This circuit consists of a voltage regulator for 6 V batteries with a very low voltage drop. The...