QRP Sidetone Generator/Code Practice Oscillator

Compartir:
For use with low-power transmitters with a positive keying voltage. Q1/Q2/Q3 form a switching amplifier. When the key is pressed, the collector of Q3 goes to ground, turning on Q5 and activating IC1, an audio oscillator. Q4 drives the speaker. For use as a code practice oscillator, insert P1 and J1 and a key in J2.

Click para ampliar
Compartir:

0 comments:

Publicar un comentario

QRP Sidetone Generator/Code Practice Oscillator - Circuitos de Electronica

Buscar

Archivo del blog