This 1965 Philips circuit uses old company transistors like the BFY51 and BFY50. The circuit is powered by 12 V and the power gain is 8.9 dB.
This oscillator uses a small transistor amplifier or radio output transformer. We found it in a...
This small transmitter circuit has a range of about 100 meters, and the antenna must be connected to...
In the figure we have the way to connect several 555 to obtain sequential operation. The component...