preamplifier board diy set ac 15v volume control board diy ki | Shop The World
From USA
NewWisoqu
Preamplifier Board DIY Set, AC 15V Volume Control Board DIY Kit, Low/Middle/High Pitch
ℹ
Products from the USA may come with an input voltage of 110V–120V, requiring a step-down transformer. Check the device wattage to select the correct power converter.
•Power supply circuit adopts full bridge rectifier
•Effectively eliminate the interference of AC power grid
•Chip has high conversion rate and strong drive ability
•Better performance,noise is very small
•Can not use 12 V battery or DC directly as power supply
