LEKULE: AC CIRCUITS

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23 Jul 2015

RPM Meter for Automobiles Circuit Diagram

SOSTENES LEKULE JR July 23, 2015 0 Comments

An efficient way to measure the RPM of a vehicle is through its ignition pulses. RPM of a vehicle is directly proportional to the rate o...

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12 Jul 2015

AC CIRCUITS

RC Charging Circuit

SOSTENES LEKULE JR July 12, 2015 0 Comments

The Time Constant All Electrical or Electronic circuits or systems suffer from some form of “time-delay” between its input and output, ...

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2 Jun 2015

EXPERIMENTS

Signal Coupling

SOSTENES LEKULE JR June 02, 2015 0 Comments

PARTS AND MATERIALS 6 volt battery One capacitor, 0.22 µF (Radio Shack catalog # 272-1070 or equivalent) One capacitor, 0.047 µF (Radio...

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EXPERIMENTS

Inductor-Capacitor “tank” Circuit

SOSTENES LEKULE JR June 02, 2015 0 Comments

PARTS AND MATERIALS Oscilloscope Assortment of non-polarized capacitors (0.1 µF to 10 µF) Step-down power transformer (120V / 6 V) 10...

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EXPERIMENTS

Waveform Analysis

SOSTENES LEKULE JR June 02, 2015 0 Comments

PARTS AND MATERIALS IBM-compatible personal computer with sound card, running Windows 3.1 or better Winscope software, downloaded free f...

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EXPERIMENTS

PC Oscilloscope

SOSTENES LEKULE JR June 02, 2015 0 Comments

PARTS AND MATERIALS IBM-compatible personal computer with sound card, running Windows 3.1 or better Winscope software, downloaded free ...

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EXPERIMENTS

Musical Keyboard as a Signal Generator

SOSTENES LEKULE JR June 02, 2015 0 Comments

PARTS AND MATERIALS Electronic “keyboard” (musical) “Mono” (not stereo) headphone-type plug Impedance matching transformer (1k Ω to 8 ...

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EXPERIMENTS

Sound Cancellation

SOSTENES LEKULE JR June 02, 2015 0 Comments

PARTS AND MATERIALS Low-voltage AC power supply Two audio speakers Two 220 Ω resistors Large, low-frequency (“woofer”) speakers are m...

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EXPERIMENTS

Phase Shift

SOSTENES LEKULE JR June 02, 2015 0 Comments

PARTS AND MATERIALS Low-voltage AC power supply Two capacitors, 0.1 µF each, non-polarized (Radio Shack catalog # 272-135) Two 27 kΩ r...

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EXPERIMENTS

Induction Motor, Large

SOSTENES LEKULE JR June 02, 2015 0 Comments

PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF 120VAC or 350VDC, non-polarized #33 AWG magnet wire, 2 pounds wooden bo...

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EXPERIMENTS

Induction Motor

SOSTENES LEKULE JR June 02, 2015 0 Comments

PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF (or 2.2 µF) 120VAC or 350VDC, non-polarized 15 to 25 watt incandescent l...

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EXPERIMENTS

Automotive Alternator

SOSTENES LEKULE JR June 02, 2015 0 Comments

PARTS AND MATERIALS Automotive alternator (one required, but two recommended) Old alternators may be obtained for low prices at aut...

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Breaking

23 Jul 2015

RPM Meter for Automobiles Circuit Diagram

12 Jul 2015

RC Charging Circuit

2 Jun 2015

Signal Coupling

Inductor-Capacitor “tank” Circuit

Waveform Analysis

PC Oscilloscope

Musical Keyboard as a Signal Generator

Sound Cancellation

Phase Shift

Induction Motor, Large

Induction Motor

Automotive Alternator

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