Archive for May, 2008
Power supply 4-30V 20A LM338
This is a regulated and adjustable power supply which can deliver up to 20A and adjustable voltage between 4 and 30V. It is easy to build and uses LM338 and 741 integrated circuits. VR1 it is used to adjust the output voltage.
2N3055 datasheet
2N3055 is a single diffused NPN silicon transistor in TO 3 case.
The collector is electrically connected to the case.
The 2N3055 transistor is particularly suitable for use in powerfull AF output stages and in stabilized power supply units.
Audio power amplifier 60W with 2N3055
This is a simple 60W class B power amplifier. This audio amplifier can work from 30 to 60V with the maximum input voltage around 0.8 - 1V. It is built with the well known 2N3055 and can deliver up to 80W on a 4Ω speaker.
60W audio power amp circuit schematic:
