This circuit is from the Motorola Linear Databook of 1990. The coils must be according to the frequency of the signal.
Found in older documentation this setting applies to modern components, noting that the power...
This circuit can send signals in both the VHF and FMN bands with a range of a few tens of meters. The...
This circuit indicates when the voltage of a 12 V battery is low. With changes, for example, the...