This circuit was obtained from an 80s factory manual. The integrated circuits used are uncommon today, but the diagram is for reference only.
Found in old National Semiconductor documentation, this indicator uses an integrated circuit from...
Other amplifiers of the series like the MC3301, MC3401 and LM2900 can be used in this circuit. We found...
The microwave sensor of this circuit is a common ceramic capacitor. The circuit is from an 80's...