hi everybody,
i hav bin looking at several circuit diagrams of amplifiers and i saw this one that has 2 coupling capacitors connected to the speaker. there are two transistors in the output, PNP & NPN with their emitter joined together. from the point where both emitters are joined a capacitor is connected and the other end is connected to one of the speaker terminal. then from the NPN collector another capacitor is connected and the other end connected to another terminal of the speaker.
what i usualy see is one capacitor connected from where both emitters are joined and the other end connected to the speaker.
can someone pls explain? :unsure:
i hav just bought a battery operated AM radio kit which i will try to assemble this weekend. the circuit diagram also used a single capacitor connected to the speaker. im at a lose. pls help me to understand.
i hav bin looking at several circuit diagrams of amplifiers and i saw this one that has 2 coupling capacitors connected to the speaker. there are two transistors in the output, PNP & NPN with their emitter joined together. from the point where both emitters are joined a capacitor is connected and the other end is connected to one of the speaker terminal. then from the NPN collector another capacitor is connected and the other end connected to another terminal of the speaker.
what i usualy see is one capacitor connected from where both emitters are joined and the other end connected to the speaker.
can someone pls explain? :unsure:
i hav just bought a battery operated AM radio kit which i will try to assemble this weekend. the circuit diagram also used a single capacitor connected to the speaker. im at a lose. pls help me to understand.