We find this circuit in an Electronic Design of the 90s. The used integrated circuit admits equivalents and next to the diagram are given the formulas for the calculation of the components used.
This circuit was obtained in a documentation from the 1970s. What it does is to delay trigger a...
This circuit is from a 1997 publication, but it can be assembled with a BD136 for TR1. The...
This circuit, for bands above 15 MHz, was found in an Argentine publication from the 1970s. The L1...