2n2222 amp

Ferris_Bue

Hey all,

I'm still alive. I need some help here. I need amplifier that use a 2n2222 npn. I just need a smpile one. does not matter how meny wattes it is. Would like the help.

Thanks
Ferris

Harley

Need more info to provide much help. Audio, video, etc? Signal in/out range? Source/load impedance?

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Harley Shanko

kittmaster

this should be relatively close for your request.

deSilva

@kittmaster - you'd better discard this program or yours that computes your filters

Paul Baker

Ferris, what Harley has said is true, you haven't provided enough information (such as gain, bandwidth and a host of other parameters). Kittmaster's circuit will work if it happens to match what your looking for. Using Spice is indespensible for analog design, LTSpice is a free version of the software. Not the easist thing to use if you aren't already familiar with it, but it will analyze nearly anything you throw at it. I just finished the prototype design for the next generation Oscilloscope's analog front end. I analyzed the entire circuit using LTSpice making sure it worked as expected both in DC-transfer and AC-transfer, without it I would have been lost on how to fine tune the circuit to meet requirements.

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Paul Baker
Propeller Applications Engineer

Parallax, Inc.