Power Supply +13.8V 5A with LM338

R1=270R 1/4W 2%

C4-5=10uF 25V
T1=220Vac/15VAC – 8A Mains Transformer
TR1=4k7 (Multiturn)
D1-2=1N4002 (1A/100V)
S1=2 Pole Single Throw Mains Switch
C1=10000uF 40V
C2-3=100 nF 100V Polyester
B1=25A Bridge Rectifier
F1=250mA Fuse

IC1= LM338