Pulse generator with delay 555 (CB8922E)

We found this circuit in a Hands On Electronics from the 90s. The delay is given by the formulas next to the diagram.

AD590 or AD592 Temperature Sensor (CB25446E)
This circuit allows you to read temperatures with a common digital voltmeter. We found it in the...
Voltage Indicator (CB18187E)
This circuit for the 1.5 to 15 V scaled ranges was found in a 1982 documentation, but uses current...
4.8 MHz TTL Oscillator (CB13857E)
The integrated circuit of this 1976 configuration is the 7400 and the type crystal in televisions of the...