This circuit is from a 90s American documentation. The circuit can use complementary pairs according to the power. The power voltage can be between 5 and 12 V.
We found this traditional configuration in an Italian 1960 documentation. The transistor can be...
This detector was found in an old Electronic Design using transistors of the time. The circuit can be...
This circuit can source up to 1,000 V from a 9 V battery. Output current is very low, some...