Hi --
I made a common emitter amp (just for hobby/exploring in order to learn how to make these amps, explore transistors, how the biasing works, how to calculate gain, etc.) That worked well and I simulated it in ORCAD trial version 16.
Now I'd like to try this out on a breadboard. I assume I can try with a small microphone as the input but I realize I cannot just add a small 8Ohm speaker to it (when I do calculations with the added 8Ohm speaker it looks like my gain would drop from about 200 to about 2!). What is the best way to connect this to a small speaker?
Two ways I found are...
-Emitter Follower
-Op Amp (if so which one -- the LM386?)
I would like to try with emitter follower to learn about that so I tried a simple emitter follower (unity gain with no biasing) but I am suspicious that my setup is not quite correct. I attached what I have so far.
Thanks for any ideas or help on this. I have found a lot of info on the internet to get me at least to understand the Common Emitter amplifier setup so that is fun!
Thank you!
I made a common emitter amp (just for hobby/exploring in order to learn how to make these amps, explore transistors, how the biasing works, how to calculate gain, etc.) That worked well and I simulated it in ORCAD trial version 16.
Now I'd like to try this out on a breadboard. I assume I can try with a small microphone as the input but I realize I cannot just add a small 8Ohm speaker to it (when I do calculations with the added 8Ohm speaker it looks like my gain would drop from about 200 to about 2!). What is the best way to connect this to a small speaker?
Two ways I found are...
-Emitter Follower
-Op Amp (if so which one -- the LM386?)
I would like to try with emitter follower to learn about that so I tried a simple emitter follower (unity gain with no biasing) but I am suspicious that my setup is not quite correct. I attached what I have so far.
Thanks for any ideas or help on this. I have found a lot of info on the internet to get me at least to understand the Common Emitter amplifier setup so that is fun!
Thank you!
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