We found this circuit in a 1977 Timers Cookbook. The circuit uses common components to divide a 1 kHz signal by 2. The output has an amplitude of 2 Vpp.
This circuit functions as a thermostat triggering a relay when the boil control temperature...
The circuit presented is quite simple, employing tone modulation of the signal. To receive the...
El circuito de la figura es sugerido por National Semiconductor y puede servir de base para una...