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lm317 Power Supply Voltage Regulator kit DIY Electronic kit Set 110V to DC1.25-12V Voltmeter Welding Training from eta

Price: $15.99 $13.00
Product prices and availability are accurate as of 2022-12-01 11:51:04 UTC and are subject to change. Any price and availability information displayed on https://www.amazon.com/ at the time of purchase will apply to the purchase of this product.
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Product Description

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Product Features

Product Describe: Adjustable regulated power supply assembled DIY kit, 110V input voltage, 1.25V-12V adjustable voltage output. Suitable for electronic DIY electronics enthusiasts to learn, welding practice. And can be used for electronic DIY small circuit power supply. Product function: output current: 200mA, suitable for DIY small circuit power supply, one adjustable signal generator output, convenient to provide pulse signals to the experimental circuit, logic pen to test the logic level, and a buzzer to test whether the circuit is powered And low frequency signals. welding skills: 1. Weld small components such as resistors and capacitors first. 2. Weld LM317 to the radiator. 3. Weld voltmeter-4. Weld transformer-5. Fix transformer and PCB with screws. folder. Required tools: electric iron: 30W, solder wire: 0.8-1mm, tweezers, diagonal pliers. Product parameters: Transformer power: 2W, Shell size: 11.2x6.9x4cm, PCB size: 7.2x6.2cm, Weight: 270g. Blue LED: Power operation indication. Yellow LED: signal indicator. Red LED: high logic level indication. Green LED: Low logic level indication. Adjustment: 1. The voltage is not adjustable. Check for short circuit in the welding behind the voltmeter; 2. The voltage adjustable range is small; check the R1 resistor for errors. Suitable for circuits below 200mA. The product contains instructions and provides technical guidance.