This modulator circuit for low intensity signals is from old documentation. The integrated circuit used is uncommon today. The circuit operates with signals up to 2MHz.
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...