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 preamplifier is recommended by Sanyo and is based on its LA3160 integrated circuit. The...
This very low current negative bias source can be used in any inverter. The output voltage is...
This non-inverting AC amplifier was found in the February 1990 issue of Radio Electronics...