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.

BMA253 Triaxial Acceleration Sensor for Low G
June 2017 - Bosch's new low G triaxial sensors can now be obtained from Mouser Electronics. The...
Small FM transmitter (CB26189E)
We found this circuit in the Electronics Experimenter Handbook magazine from 1993. L1 has 2 = 2...
Fluorescent Lamp Inverter (CB4317E)
This small fluorescent lamp inverter (up to 20 W) can be powered by 12 V battery and even less. The...