Speed Control (CB5943E)

This circuit meets applications in remote control. It allows to control a motor from input pulses. The circuit was found in a 1980s documentation.

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10 Gain Amplifier LM3900 (CB5042E)
In the figure we have the circuit of an amplifier for alternating signals with 10 times gain,...
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We found this circuit in a documentation on active filters from 1977. The gain of this circuit is...
One-Component Oscillator (CB112)
Figure bellow shows a ring oscillator using five inverters of a 4049. [The circuit operates only...