EU 220V DIY LM317 Adjustable Voltage Power Supply Board Learning Kit With Case
Assembling LM317 Adjustable Voltage Power Supply for your own

- You can get Adjustable Voltage Power Supply here: [ Ссылка ]

+ One way adjustable signal generator output. Convenient to provide the pulse signal
+ With a logical pen function. For convenient the logic level of test circuit
+ With one way buzzer. You can test the wires on and off
+ You can also test the low-frequency signal

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