cyberquest
New Member
Hi all
Enclosed is a diagram to a circuit I'm testing.
The red square is the part of that curcuit I need help on.
I need a amp or preamp that will in increase the out put tone comimg out on pin 16 to the TIP31 out the speaker.But the single is to waek for the mic to pick it up between 0-25ft away. I need a amp or preamp where i could control the gain ,if i need to. Maybe a circuit base on a 386 op amp or a 741 op amp might work.I need someone to help me who knows what will work for increasing the single out the speaker for the mic to pick it up a the distance i stated.The mic is either a electret mic or a magnetic mic they sell them in Radio shack .
PS Don't have experience in amplifier ciruits.
Jameco Electronics Electromechanical: JAMECO VALUEPRO: ECM-60PC-R
THIS IS THE MIC I'M USING.
Enclosed is a diagram to a circuit I'm testing.
The red square is the part of that curcuit I need help on.
I need a amp or preamp that will in increase the out put tone comimg out on pin 16 to the TIP31 out the speaker.But the single is to waek for the mic to pick it up between 0-25ft away. I need a amp or preamp where i could control the gain ,if i need to. Maybe a circuit base on a 386 op amp or a 741 op amp might work.I need someone to help me who knows what will work for increasing the single out the speaker for the mic to pick it up a the distance i stated.The mic is either a electret mic or a magnetic mic they sell them in Radio shack .
PS Don't have experience in amplifier ciruits.
Jameco Electronics Electromechanical: JAMECO VALUEPRO: ECM-60PC-R
THIS IS THE MIC I'M USING.
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