This circuit is from the 80's, using an integrated of the time. The circuit serves as a reference, as this type of dialing is no longer used today.
This is a commercial circuit from the year 1958. Transistors are germanium types and transformers...
The power transistors of this 80's circuit should have at least 10 A current collector and mounted on...
The I2C EERAM Memory is a Low - Cost NVSRAM that Eliminates the Need for an External Battery to...