This circuit was found in an ancient American documentation. The power supply is not given, but we have the voltages used. The relay is sensitive type for high voltage.
Mouser Electronics already has in stock the new RF transceivers Atmel / Microchip ATA8820 SIGFOX ™ for...
We found this circuit in a documentation from the 50's. The transistors are germanium types. The...
The third version for the 4098 is shown here (the others are CIR17E and CIR138E). It is a...