Quantity   Component name
1 × Exteruded Aluminium Case case salvaged from an old pump control box
1 × Tip3305 or equivelent
1 × 4mm binding post, red
1 × 4mm binding post, black
1 × 2x 18V AC, 20VA transformer, EI core, small enough to fit inside
1 × 5x20mm fuse holder y'know cos safety
1 × SPST toggle switch to turn output on/off
1 × 5mm (T1-1/4) bulb LED, Red
1 × 5mm (T1-1/4) bulb LED, Green
1 × 4 digit volt and ammeter
1 × AD680 2.5V reference
2 × 2n3904 npn transistor
1 × LM324 Amplifier and Linear ICs / Operational Amplifiers
4 × 1n4004 Discrete Semiconductors / Diodes and Rectifiers
1 × 7805 Regulator
1 × lm334 Semiconductors and Integrated Circuits / Misc. Semiconductors and Integrated Circuits
1 × 1n4148 Discrete Semiconductors / Diodes and Rectifiers
4 × 220uF, 50V electrolytic Capacitor
1 × 5k, 5 turn potentiometer, panel mount
1 × 10k, 10 turn Potentiometer, panel mount
1 × 10k, 1 turn trim pot, THP
2 × 1000uF, 35V electrolytic capacitor