DIY Adjustable Power Supply Kit with AC 220V Input, LM317 Regulator, Signal Output & Continuity Buzzer for Electronic Projects

DIY Adjustable Power Supply Kit with AC 220V Input, LM317 Regulator, Signal Output & Continuity Buzzer for Electronic Projects Description

Product Details ①. Adjustable signal generator output enables convenient pulse signal provision for circuit testing ②. Built-in buzzer allows wire on-off testing (connect wire to power and signal inputs for sound on continuity) and low frequency signal detection (beep indicates signal presence) ③. Spare part design requires self-welding and assembly, ideal for DIY electronic projects ④. DIY enthusiasts can replace with same-output 220V transformer for AC 220V use Specification ①. Plug Type: EU Plug (compatible with Indonesia, Germany, France, Spain, Italy, etc.) ②. Voltage: AC 220V ③. Colour: P o Color ④. Material: ABS Package Contents ①. 1 set x Adjustable regulated power supply (delivered as separate parts; appearance and color may vary between batches but does not affect usage) Warm Tips ①. Light reflection and different displays may cause slight color differences between pictures and actual product ②. Measurement error is allowed within +/- 1-3cm