We found this circuit in an American publication from the 1990s. The circuit has a Darlington stage to drive a high-power LASER diode.
This circuit was found in an American publication in 1966. The circuit uses a general-purpose FET that...
This circuit has no lock, but it has a very low consumption feature in the standby condition. We...
This is the typical circuit of a local oscillator for a superheterodyne FM receiver. The circuit...