This circuit is from an American 80's documentation. The circuit indicates when the voltage of a 9 V battery drops below 7 V. The transistors can be BC548.
We found this configuration in documentation from the 1970s, but all components are current. If a...
The circuit shown fires an auxiliary flash from a flash commanded directly by the camera. The sensor...
March 2017 - This new component of Vishay has a 16-bit resolution that allows it to be used in a...