This circuit was found in a Signetics documentation from the 1980s. Next to the figure are the waveforms of the generated signals. The transistor admits equivalent.
Only for reference this is a circuito f a commercial receiver of the year 1958. The circuit uses...
This modulator for analog video signals was found in a 1980s Motorola documentation. The circuit...
With a 1 500 uFcapacitor this timer can reach times up to one hour. The capacitor must be of good...