An
easy to build, powerful, stabilised power supply with variable output voltage
from 0 to 30 Volts and a maximum power rating of 3A. It covers almost all
the voltages needed in the electronic laboratory. The kit comes complete
with a large heatsink for the power transistor. It uses three op-amps and
four transistors. SUITABLE BOX 2138. V 24 VAC T 24VAC/3A PCB
85x123mm