This circuit transmits in the FM band. It is a good range FM transmitter found in a 90's Silicon Chip documentation. The integrated circuit used can be difficult to obtain.
I found this circuit in a doc umentation from the year 1968. It uses germanium transistor and has...
This circuit produces sounds that depend on the measured voltage and that can be compared with a...
This circuit was found in American documentation from the 90s. It serves as an amplifier for a...