Hoffman Amplifiers Tube Amplifier Forum
Other Stuff => Solid State => Topic started by: lkrasner on August 26, 2016, 01:52:40 pm
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someone asked me to design a mini solid state amp for them, wanting a bit more than what something like the Little Gem has to offer. Looking for 1-5W, tone control, gain, volume, and powered by a 9V battery or power supply. Obviously I feel like I'm not going to be able to really get more that 5W out of this, but I'm looking to do a bit more than the typical one stage op-amp circuit. Anyone have some links to interesting designs they've seen for inspiration?
Edit: This looks promising - http://www.electrosmash.com/1wamp (http://www.electrosmash.com/1wamp)
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this site might have some ideas, you can *usually* find a schematic under specs tab, or links to links to....
http://www.analogmetric.com/category.php?id=20 (http://www.analogmetric.com/category.php?id=20)
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1+ Watts is unrealistic for a standard 9V battery. Even 200mW (0.2W) pocket radios ran down their batts fairly quick.
The classic battery amp was the PigNose. It took a big stack (8? 10?) of AA cells. It was a gas, but a drag to re-fill.
People who busk are leaning to motocycle and power-tool batteries.