SarKITeffects

 Hello friends Today my video how to make 12v dc voltage regulator 0 to 12v | 12 volt dc motor speed controller very simple used parts  1 . transistor 3055 2. bc557 transistor  3. 2p R10k 4. R1k 5. 100k volume  6. PCB board  Circuit diagram  Friends it is easy to make. 12v motor speed control   If you want to make it, you can make it very easy.  if there is any problem . comment now  any problems Thanks for watching 

 Hello friends Please subscribe now my channel circuiteffects and circuiteffects project Today videos lithium battery charging module बनाएं आपने घर पर || 3.7 V battery charger auto cut off 4.2 V Used parts 1 . 2 LED light Red and green 2v 2. 2p R4.7k  3. R220 4. R15k 5. R1k 6. R5.6k 7. TL431  8. IRFZ44N 9. lithium battery 3.7v  10 . 2A 5v mobile charger Circuit diagram Thanks for watching