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Hi koossa,
IMHO a 555 timer is more appropriate for this project, it's analog output will better drive the amplifier than the PICs choppy output. Price ? About the same, you could use a 556 dual 555 and vary the tone with the second timer, Oh, and have more hair left at day's end too.
If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
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Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
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There simply is no "Happy Spam" If you do it you will disappear from this forum.
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