Found in Linear Technology documentation, this circuit drains only 70 uA of the monitored circuit. The components used are from that time.
When the power is turned on, the output of this circuit goes to the “1“ logic level by a time...
This circuit was found in an old manual of linear integrated circuits of the 80's. Equivalent...
This is the normal circuit of a relaxation oscillator using an unijunction transistor such as the...