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A test probe, test prod, scope probe or test lead is a physical device used to connect electronic test equipment to a device under test or DUT. They range from very simple, rugged devices to complex probes that are sophisticated, expensive, and fragile. A current probe generates a voltage proportional to a current in the circuit being measured; as the proportionality constant is known, instruments that respond to voltage can be calibrated to indicate current. Current probes can be used both by measuring instruments and oscilloscopes. To measure or display the modulating waveform of a modulated high-frequency signal, for example: an amplitude-modulated radio signal-a probe fitted with a simple diode de-modulator can be used. The probe will output the modulating waveform without the high-frequency carrier.

In-circuit test or ICT is an example of white box testing where an electrical probe tests a populated printed circuit board "PCB", checking for shorts, opens, resistance, capacitance, and other basic quantities which will show whether the assembly was correctly fabricated. It may be performed with a bed of nails type test fixture and specialist test equipment, or with a fixture-less in-circuit test setup.

A function generator is typically a piece of electronic test equipment or software used to generate different types of electrical wave forms over a wide range of frequencies. Some of the most common wave forms produced by the function generator are the sine, square, triangular and saw-tooth shapes. These wave forms can be either repetitive or single-shot which requires an internal or external trigger source. Integrated circuits used to generate wave forms may also be described as function generator ICs. Although function generators cover both audio and RF frequencies, they are typically not suitable for applications that need low distortion or stable frequency signals. When those traits are required, other signal generators would be more appropriate. Some function generators can be phase-locked to an external signal source which may be a frequency reference or another function generator. Function generators are used in the development, test and repair of electronic equipment. For example, they may be used as a signal source to test amplifiers or to introduce an error signal into a control loop.

500pc Radial

500pc Radial Electrolytic Capacitor Assortment Kit 24 Value 01uF 1000uF 10V 50V

500pc Radial Electrolytic Capacitor Assortment Kit 24 Value 01uF 1000uF 10V 50V

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2600 pcs

2600 pcs 130 Values 1 4W 025W 1ohm 3M Resistor Resistors Kit Assortment Set

2600 pcs 130 Values 1 4W 025W 1ohm 3M Resistor Resistors Kit Assortment Set

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1460pcs 1

1460pcs 1 4W Metal Film Resistor Kit Assortment Set Labelled 1 Precision

1460pcs 1 4W Metal Film Resistor Kit Assortment Set Labelled 1 Precision

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508 pc

508 pc Heat Shrink Tubing Wire Wrap Assortment Set Electrical Connection Cable

508 pc Heat Shrink Tubing Wire Wrap Assortment Set Electrical Connection Cable

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500PCS Electrolytic

500PCS Electrolytic Capacitor Assortment Kit 01UF 1000UF 16V 50V 24 Value w Box

500PCS Electrolytic Capacitor Assortment Kit 01UF 1000UF 16V 50V 24 Value w Box

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Electrolytic Capacitor

Electrolytic Capacitor Assortment Kit 01UF 1000UF 16V 50V 24 Value 500PCS w Box

Electrolytic Capacitor Assortment Kit 01UF 1000UF 16V 50V 24 Value 500PCS w Box

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Radial Electrolytic

Radial Electrolytic Capacitor Assortment Kit LOT of 390 caps

Radial Electrolytic Capacitor Assortment Kit LOT of 390 caps

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1000pc Set

1000pc Set 1 2W1 10M ohm Values Assorted Carbon Film Resistors Assortment Kit US

1000pc Set 1 2W1 10M ohm Values Assorted Carbon Film Resistors Assortment Kit US

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500pcs Electrolytic

500pcs Electrolytic Capacitor Assortment Kit 01UF 1000UF 10V 50V 24 Value w Box

500pcs Electrolytic Capacitor Assortment Kit 01UF 1000UF 10V 50V 24 Value w Box

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750x Assortment

750x Assortment 21 Heat Shrink Wire Wrap Tubing Electrical Connection Cable Set

750x Assortment 21 Heat Shrink Wire Wrap Tubing Electrical Connection Cable Set

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120pcs ELECTROLYTIC

120pcs ELECTROLYTIC CAPACITOR Assortment Rubycon Panasonic Nippon Nichicon

120pcs ELECTROLYTIC CAPACITOR Assortment Rubycon Panasonic Nippon Nichicon

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Metal Film

Metal Film Resistors Assortment Kit Resistance 1 4 Watt 1460 pcs Resistors Pack

Metal Film Resistors Assortment Kit Resistance 1 4 Watt 1460 pcs Resistors Pack

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heat shrink

heat shrink tubing assortment 21

heat shrink tubing assortment 21

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508pcs 2

508pcs 2 1 Heat Shrink Wrap Tubing Tube Assortment Sleeving Cable Wire Black

508pcs 2 1 Heat Shrink Wrap Tubing Tube Assortment Sleeving Cable Wire Black

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1100pcs 110

1100pcs 110 Values 1 2W 01 10M Assorted Metal Film Resistor Assortment Kit

1100pcs 110 Values 1 2W 01 10M Assorted Metal Film Resistor Assortment Kit

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600pcs 15Types

600pcs 15Types Transistor TO 92 Assortment Kit Set For DIY Electronic Project US

600pcs 15Types Transistor TO 92 Assortment Kit Set For DIY Electronic Project US

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415pcs 10

415pcs 10 Sizes Assortment Ratio 21 Heat Shrink Tubing Sleeving Wrap Wire Kit

415pcs 10 Sizes Assortment Ratio 21 Heat Shrink Tubing Sleeving Wrap Wire Kit

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600PCS Ceramic

600PCS Ceramic Capacitor Assortment Kit With 500PCS Electrolytic Capacitor Kit

600PCS Ceramic Capacitor Assortment Kit With 500PCS Electrolytic Capacitor Kit

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