Driver for Electric Typewriter (CB6561E)

This circuit was found in a Philips documentation from 1966. Its purpose is to drive the solenoid of an electric typewriter of the time.

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Operational Amplifiers Symmetric Power Supply 78xx and 79xx (CB15342E)
This source can supply currents up to 1 A. The circuit is from Motorola's 1993 Linear Interface ICs....
Transmitter Monitor (CB23890E)
The purpose of this receiver is to monitor the signal from a nearby transmitter. It was published in an...
Symmetrical power supply (CB21691E)
In the figure we have a symmetrical power supply stabilized by a zener diode. Transformer and...