This 50W OCL main amplifier circuit has high quality and economical,it is designed simple,easily created, electronics rookie.cheap when compared to other
To Learn Relationship of voltage current power and resistance with water flowing so easy. Look at Ohms Law, basic electricity you should know.
This is how to modify old Lead-acid battery charger or convert power supply to battery charger in automatic. To protect over charging by CA723 and power SCR
First time for learning how to use LEDs.
When we build variable DC power supply,output 1A and adjust up to about 30V. Most use LM317, because high-efficiency, easy to apply and cheaper[...]