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[MOVED] Discrete Pulse Width Modulator

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iimagine

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Adding a couple more transistors to my discrete linear generator, we have a discrete PWM ;-)

What can I say? I like discrete stuffs :cool:
 

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iimagine

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Re: Discrete Pulse Width Modulator

Well, here are the test results from the latest version breadboarded. Not too clean, needs a little 'tweaking' but worked on the first try!

I used 2n4401/2n4403 for all transistors; R7/R8 voltage divider was replaced with a 500k pot

Next, I will build a Color Organ using this circuit to drive LEDs

Please, as always, I would really appreciate any comments on what you think of it and any suggestions to further improve it.

PS: Since it was breadboarded, the freq was not too stable
 

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