DO-35 Small Signal NPN Transistor, TO-92 R16, R17, R19, R20 **Potentiometer, 9 mm or 16 mm 3.5 mm jack 3 mm LED 5 mm x 20 mm row spacing, 12.6x8.3x4.1mm Autotransformer, Toroid, horizontal, laying, Diameter 9mm, Amidon, T30, Transformer Toroid tapped horizontal laying Diameter 10 5mm Amidon T44 Choke, Inductance, Autotransformer, Toroid, horizontal.