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Author Topic: Pre "inside" a 9V battery  (Read 2161 times)

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Offline mblindsey

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Pre "inside" a 9V battery
« on: February 03, 2010, 01:52:33 PM »

Didn't see this posted elsewhere...kind of interesting:

http://hackaday.com/2010/02/03/amplifier-built-inside-a-9v-battery/

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Offline sunjan

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Re: Pre "inside" a 9V battery
« Reply #1 on: February 18, 2010, 05:07:38 AM »
Neat idea! Maybe Chris can get some inspiration for the next generation of CA-UGLY?

The description of the circuitry is for a headphone/speaker amp though, so that part isn't useful for us.
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Offline Church-Audio

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Re: Pre "inside" a 9V battery
« Reply #2 on: February 18, 2010, 05:31:02 AM »
Neat idea to bad he used a lm386 not a great opamp.
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