This 100 kHz oscillator was found in a 1966 Motorola publication. The transistors are of types suitable for the generated frequency and L1 / C1 depend on that frequency.
This transmitter emits signals in the FM range, reaching a few meters away. The modulation...
This audio amplifier has an internal DC volume control with logarithmic characteristics and a...
This configuration found in GE documentation from the 90s, can also be seen elsewhere in this...