scooty pep electrical wiring rat bite fixing

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If u r  scooty pep owner Be careful.....

TLC 272 PREAMPLIFIER

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here is the one good circuit what i found with sharp tone controller.for best performance use very smooth power supply for this circuit. the circuit shown here must duplicated to obtain a stereo preamplifier.

UP/DOWN FADING LED CIRCUITS

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These two circuits make a LED fade on and off. The first circuit charges a 100u and the transistor amplifies the current entering the 100u and delivers 100 times this value to the LED via the collector-emitter pins. The circuit needs 9v for operation since pin 2 of the 555 detects 2/3Vcc before changing the state of the output so we only have a maximum of 5.5v via a 220R resistor to illuminate the LED. The second circuit requires a very high value electrolytic to produce the same effect.