Position: Index > Oscillator Circuit >

Code-Practice Oscillator Iii

2016-08-21 23:05  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.


Capacitor CI charges through resistor Rl, and when the gate level established by potentiometer R2 is high enou
Code-Practice Oscillator Iii

gh, the SCR is triggered. Current flows through the SCR and earphones, discharging CI. The anode voltage and current drop to a low level, so the SCR stops conducting and the cycle is repeated. Resistor R2 lets the gate potential across CI be adjusted, which charges the frequency or tone. Use a pair of 8- headphones. The telegraph key goes right into the B line, 9-V battery.



Reprinted Url Of This Article:
http://www.next.gr/audio/oscillators/code-practice-oscillator-iii-l14275.html