Reference package:
Resistance: AXIAL0.3 ~~ AXIAL1.0 (inches, 1 inch = 25.4mm)
Trouble: square rad0.1 ~~ rad0.4
: Round RB.2 / .4 RB.3 / .6 RB.4 / .8 RB.5 / .10
Small power triode: TO-92A (B)
Medium power triode: TO-126
Potentiometer: VR1 ~~ VR5
