Created to serve as a booster for TV signals in the UHF band, this circuit was found in the March 192 Radio Electronics magazine. Assembly is critical, requiring a special board layout.
The circuit shown in the figure can be used as an indicator of presence and high voltage in a...
This circuit uses the 2N626, the first commercial Darlington transistor. We found it in Radio...
This circuit can generate signals from 80 to 800 Hz with an amplitude of 0.3 V. We find it in a...