Berkunjung ke kingsolder ada berbagai macam skema elektro. dulu waktu remaja hoby aku bikin barang elektronik, mulai radio, amplifier, lampu hias, sampai peralatan digital nah berkunjung ke situs ini mengingatkan masa laluku yang cukup indah :-)
www.kingsolder.com
Tuesday, May 5, 2009
Mosquito Repellant
I find Mosquito Repellant circuit from Graham Maynard.
Consisting of a phase locked loop (CMOS 4047) wired as a 22KHz oscillator,
The output is further amplified by a pair of complimentary output transistors and drives 3.25 inch Piezo.
Consisting of a phase locked loop (CMOS 4047) wired as a 22KHz oscillator,
The output is further amplified by a pair of complimentary output transistors and drives 3.25 inch Piezo.
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