Current Booster (CB6787E)

This circuit was suggested by Linear Technology in documentation from the 90s. The circuit applies to modern operators with modern transistors.

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Second Order High Pass Filter (CB12573E)
The configuration shown in the figure is a second order filter (12 dB per octave) with an...
FM AC Transmitter (CB20347E)
This transmitter, indicated for espionage applications, is permanently powered by the power grid....
SCR Incandescent Indicator (CB14902E)
This circuit was obtained in an old French publication from the 80s. The maximum power of the lamp...