[sdiy] chip amp
Roy J. Tellason
rtellason at verizon.net
Sat Sep 22 03:22:08 CEST 2007
On Friday 21 September 2007 20:43, bill bigrig wrote:
> i have several amp-in-chip items I got from
> www.goldmine-elec.com, they sell several different
> kinds. stereo 45 watt into 2 ohms, 30 watt x 4
> channels, etc. They cost a buck or 2 each. You have to
> add alittle bit of circuitry for volume, tone, balace,
> etc. Most of them run on 12 volts, being chips for car
> stereo amps. A hefty power supply, a BIG heat sink and
> Bob's your uncle.
There are a bunch of datasheets for that kind of part to be found on my parts
for the overall index to things. Look for "BTL" (Bridge-Tied Load, meaning
an ungrounded speaker setup) using the search function of your browser. LOTS
of choices there...
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