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A test probe, test prod, scope probe or test lead is a physical device used to link electronic test equipment to a device under test or DUT. They range from extremely easy, rugged devices to complex probes that are sophisticated, expensive, and delicate. A current probe generates a voltage proportional to a current in the circuit being determined; as the proportionality continuous is known, instruments that respond to voltage can be calibrated to indicate current. Current probes can be used both by determining instruments and oscilloscopes. To determine or display the modulating waveform of a modulated high-frequency signal, for example: an amplitude-modulated radio signal-a probe fitted with an easy 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 carried out 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 created by the function generator are the sine, square, triangular and saw-tooth shapes. These wave forms can be either repetitive or single-shot which needs 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 characteristics are needed, other signal generators would be more appropriate. Some function generators can be phase-locked to an external signal source which may be a frequency recommendation 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.

OPTO22 240D25

OPTO22 240D25 17 240VAC 25 Amp Solid State Relay OPTO 22 3 32 vdc control

OPTO22 240D25 17 240VAC 25 Amp Solid State Relay OPTO 22 3 32 vdc control

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SainSmart 8

SainSmart 8 channel 12 V USB Relay Module Opto couple For Arduino Robotics

SainSmart 8 channel 12 V USB Relay Module Opto couple For Arduino Robotics

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Opto 22

Opto 22 Blowout 1 Lot SNAP D8M 5 B5 1 IAC24 4 G4 IDC15 60

Opto 22 Blowout 1 Lot SNAP D8M 5 B5 1 IAC24 4 G4 IDC15 60

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OPTO 22

OPTO 22 120 240 VAC 45 Amp 120 240VAC CONTROL SOLID STATE RELAY SSR 240A45

OPTO 22 120 240 VAC 45 Amp 120 240VAC CONTROL SOLID STATE RELAY SSR 240A45

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Opto 22

Opto 22 Blowout 3 Lot SNAP D8M 2 B5 1 G4 IDC15 25

Opto 22 Blowout 3 Lot SNAP D8M 2 B5 1 G4 IDC15 25

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Opto 22

Opto 22 Blowout 2 Lot SNAP D8M 3 M4 SENETC 1 IAC24 6 G4 IDC15 52

Opto 22 Blowout 2 Lot SNAP D8M 3 M4 SENETC 1 IAC24 6 G4 IDC15 52

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OPTO 22

OPTO 22 001788L Digital Brain Board

OPTO 22 001788L Digital Brain Board

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OPTO 22

OPTO 22 SNAP ODC5MA

OPTO 22 SNAP ODC5MA

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Cabinet Large

Cabinet Large Lot Integrated Circuits Opto Isolator Opvamp Transistors

Cabinet Large Lot Integrated Circuits Opto Isolator Opvamp Transistors

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Opto 22

Opto 22 PB4AH Four Channel Analog Mounting Rack

Opto 22 PB4AH Four Channel Analog Mounting Rack

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OPTO 22

OPTO 22 240D45 SOLID STATE RELAY 3 32 VDC CONTROL

OPTO 22 240D45 SOLID STATE RELAY 3 32 VDC CONTROL

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CLM50 CLM

CLM50 CLM 50 Clairex OPTO Isolator

CLM50 CLM 50 Clairex OPTO Isolator

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STI Opto

STI Opto Fence Light Curtain OF4600 50

STI Opto Fence Light Curtain OF4600 50

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OPTO 22

OPTO 22 PB4 with three IAC24 relays

OPTO 22 PB4 with three IAC24 relays

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OPTO 22

OPTO 22 007214F Digital Brain Board

OPTO 22 007214F Digital Brain Board

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OPTO 22

OPTO 22 001772B Analyzer Board

OPTO 22 001772B Analyzer Board

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CLM50 LED

CLM50 LED Photoconductor Dip Opto Isolator Qty 1 each

CLM50 LED Photoconductor Dip Opto Isolator Qty 1 each

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Opto 22

Opto 22 240D10 Solid State Relays 3 32VDC

Opto 22 240D10 Solid State Relays 3 32VDC

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OPTO22 RELAY

OPTO22 RELAY OAC5

OPTO22 RELAY OAC5

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OPTO 22

OPTO 22 MOUNTING RACK  4 iac15 INPUT MODULES

OPTO 22 MOUNTING RACK 4 iac15 INPUT MODULES

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Motorola 4N35

Motorola 4N35 Opto Isolators Lot Of 24 Pieces

Motorola 4N35 Opto Isolators Lot Of 24 Pieces

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Opto 22

Opto 22 PB16 A I O Mounting Rack 16x G1 Relays 5 15 24V w 8x ODC5 IDC5

Opto 22 PB16 A I O Mounting Rack 16x G1 Relays 5 15 24V w 8x ODC5 IDC5

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TIL102 Original

TIL102 Original TI 6P TO 5 Metal Can Opto Isolator Photo 1 pc

TIL102 Original TI 6P TO 5 Metal Can Opto Isolator Photo 1 pc

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