We also agree, pest is not invited guess. So it is the Pest repeller Schematic.IC CMOS 4047 Operate as low oscillator which the frequency can adjust bettwen 5 khz until 30 khz with trimpot P1.
each output Q and Q' feed to inverter Driver 4050 IC2 and IC3. Sixth stage in this IC connect to posible direct driving T1/T2 and T3/T4.
T1 and T4 also T2 and T3 compact conduct.The couple of transistor can driving the cheap piezo tweeter.
1 comment:
These high frequency sounds i understand cannot be heard by humans and are also not very safe around pets so its good to carefully choose a Pest Repeller that is reliable
Post a Comment