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Audio amplifier goodness

Started by Allan · 9 months ago

For the third and fourth activity in my TCOM 121.2 Telecommunications laboratory class, I asked the students to prepare a 200 gain (46 dB) audio amplifier using the LM386 with a bandwidth of 20-20kHz.
I required the students to perform simulations by creating a SPICE netlist. The learning ... Continue reading »

1 comment

  • Looks like a nice lab. Reminds me of one I gave my students. I have the students build an audio amp and feed it a signal from a funtion generator. If the function generator is set to jump in 100Hz increments from 100 to 200 to 300 to 400 to 300 to 200 to 100Hz in a time span of about 2 seconds the sound effect is that of the computer on the starship Enterprise NCC1701.
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