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 View Post: DIY Workshop » Apheared 47 on a breadboard - plz help
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elconcho

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Joined: Aug. 28, 2002
Locale: Toronto, Ontario, Canada
Total Posts: 42

posted 06-26-2003 07:47 PM CST (US)   View Profile for elconcho   Send PM  to elconcho   |  Edit Message  |  Quote Message in Reply
That's a great help. Thanks. I'm a software developer by trade and have felt a bit helpless not having debugging tools and the ability to set breakpoints etc :)

I did start with the power supply first and it was splitting the voltage nicely. I then went ahead and did all 4 amps at once--probably not the smartest idea. My next step was to pull everything but the power supply out and do one ear only.

I'd lose the pot but this amp produces waaay too much power at full volume to test without something reducing the power. I do use some garbage headphones for testing. Maybe I could throw in a 4.7k resistor in place of the pot.

As for the modified power supply circuit, should I start with my existing circuit and add the buffer or the 2nd one posted (the one by Tangent). Ie, do i need the Schottky rectifier and not need R1 and R2? What values should I use for R1 and R2?

Sorry for the millions of questions but I'd be lost without this message board.

Thanks again.

[Edited by elconcho on 06-27-2003 at 12:50 AM.]

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