Equivalent transistors can be used in this circuit for automotive applications in the 1980s. The frequency is given by the capacitor and the current of the lamp depends on the LM195 transistor.
This circuit is from a 1977 publication and is characterized by an adjustment of the polarization point of...
This amplifier for instrumentation with very high input impedance was found in a manual of JFET...
This circuit was found in an integrated circuit manual from the 1980s. The circuit can be designed...