till
Head-Fier
- Joined
- Feb 17, 2004
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I would like to increase my CMoy's battery life while I'm waiting for parts for my next amp. Currently, it is set up like this:
Can battery life be significantly improved with these or other means? Otherwise I'd have to build a NiMh charging circuit because at this rate, I'm too cheap even for cheap alkalines
- Levallois design with Meier crossfeed, see http://headwize2.powerpill.org/proje...2a_add_prj.htm (near the bottom of the page)
- 2 x OPA2132, gain of 4, dual 20k linear pot with 10k shunt resistors (I might change that, it was just a quick fix because I didn't have any other resistors)
- Tangent's BUF634-based virtual ground, see http://www.tangentsoft.net/audio/cmo.../buf634-ps.png , with 470 µF power caps
- red power LED (generic) with 10k resistor, 3 mm
- 2 x 9V battery
Can battery life be significantly improved with these or other means? Otherwise I'd have to build a NiMh charging circuit because at this rate, I'm too cheap even for cheap alkalines