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Zener diode tester
555 Timer IC
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Wattmeter Project
Digital Wattmeter Project
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Voltage to Frequency Converter
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Video DVM
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Universal High-Resistance Voltmeter
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Ultrasonic range meter
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TV testcard generator
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Triple Stroboscope
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Temperature Measurement System
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Stroboscope
circuit
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Stroboscope
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Stroboscope
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Spectrum Analyser
DC to 50 MHz spectrum analyser
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Solar Panel Current Meter
0-10A range
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Sine, Triangle and Square Wave Generator
Intersil's ICL8038 is a simple VCO (voltage controlled oscillator)
chip
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Sine Wave Generator
Sine Wave Generator, A classic Wien Bridge oscillator using an
Op-Amp covering a frequency range of 15 to 150kHz in four switched
steps
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Simple Audio Oscillator
for testing amps and speakers
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Pulse-generator & signal-tracer
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PPM and VU meter
Peak Programme Meter circuit
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Power meter
circuit
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Period to voltage conversion
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PC-Based Oscilloscope
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Oxygen Analyzer
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Owens bridge
inductance measurement device with DC current capability
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Opacity meter
for monitoring the rate of flow of powder used in a rapid
prototyping machine
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Multi Wire Cable Tester
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Microphone circuit test oscillator
440 Hz
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Magnetometers
Hall effect sensor
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Lucht benzine meter
air/fuel measurement, lamba sonde circuit
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Logic Probe
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LM3915 dot/bar display driver
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LM3914 battery monitor
measure voltages
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Lightning flash counter
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Light Pollution Meter
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LED-matrix oscilloscope
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LED VU meter
LM3914
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LED VU meter
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LED Stroboscope
measure rotational speed
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ICL7106/ICL7107 Digital LED Ammeter (Ampere Meter)
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Gaussmeter
magnetic field, magnetometer, Gaussmeter, Hall effect Gaussmeter
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Flowmeter
flowsensor circuit
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ESR Meter
circuit
-
Equivalent
Series Resistance ESR Meter
circuit
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EMF probe with meter
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Electronic Stethoscope
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DVM with the ICL7106
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Distortion measurement circuit
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Digital Volt and Ampere meter
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DC voltmeter with high input impedance
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Current meter
0-10A
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Capacitance meter
Digital Capacitance Meter, microcntroller AT90S2313
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Capacitance meter
ICL7106
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Audio test equipment
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Angle measurment coder/decoder
Gray code circuit
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Accelerometer
ADXL250
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AC Current Probe for Oscilloscope Use
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4 channel, car digital thermometer
ICL7107
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4 channel adapter for the oscilloscope
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3 phase-3 wire Sequence Indicator
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1KHz sinewave generator
simple circuitry, low distortion, battery operated. Variable, low
impedance output up to 1V RMS, 2 transistors
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10 LED VU meter
LM3914, LM353
