Transistor Variable power supply 1A, 0-30V
Transistor Variable power supply 1A, 0-30V project with PCB. Using transistor boost current to 1A. No IC. No Zener diode. But steady voltage.
15 Comments
November 6, 2018
Voltage Regulator using Op Amp and Transistor
This is a 15V DC Regulator circuit at 400mA using IC-748 and 2N3055. Although it is an ancient circuit, but if you have the equipment ready. we may try to build it.
June 9, 2017
3A adjustable voltage regulator using LM317-2N3055
High quality, 3A adjustable voltage regulator. Using LM317 and 2N3055 so easy and cheap. Adjust voltage in steps 3V, 6V, 9V, 12V. And In fine, 1.25V to 20V.
April 3, 2017
2N3055 Amplifier circuit with PCB, 50W to 60W
This is three Simple 50w OTL audio amplifier circuit by 2N3055, can build easy and cheap, It's durable and very loud sound , Not needed speaker Protection. [...]
February 6, 2017
0-70V power supply,2A variable using LM723 and 2N3055
This is 0-70V power supply,2A variable using LM723 and 2N3055. We modify from But the “Cheap adjustable 0-30V 2A Laboratory DC Power Supply” project
September 18, 2012
Four Small 5-volts DC Regulator Circuits
This Small 5-volts DC Regulator. without IC-7805. Using transistors are interesting. If you have an old transistor or want to save. It may be a good choice.
September 7, 2012
12V & 5V power supply
This is 5v 12v dual power supply circuit using 2N3055 and Zener diode for 12V then to LM309 or IC-7805 dc regulator IC for 5V output which easy circuit [...]
November 19, 2008
- 1
- 2