DIY Production Kit Of Digital Millivoltmeter Electrician and Electronic Skills Teaching Training AD Conversion Welding Parts
DIY Production Kit Of Digital Millivoltmeter Electrician and Electronic Skills Teaching Training AD Conversion Welding Parts
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Type : Voltage Regulator
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Product name: DIY production kit of digital millivoltmeter
Product model: TJ-56-51
Working voltage: DC ± 5V
PCB size: 80 * 52mm
Description:
The circuit can convert the input analog voltage into 3 and a half 8421BCD code, and display the value through 4 digital tubes. The kit adopts high-quality PCB circuit board, and the solder pad is sprayed with tin. The components are brand new, many pieces. Quality assurance.
Test precautions
Since this circuit uses CMOS circuits, relevant regulations on the use of CMOS integrated circuits should be observed during the test. All equipment shall be well grounded and the workbench shall be well insulated. When using the multimeter and oscilloscope probe, it is necessary to find the test point accurately and not short circuit with other pins.
Circuit diagram:
Package Included:
