Quantity   Component name
7 × 1N4004 Discrete Semiconductors / Diodes and Rectifiers
2 × 300 ohm 0.25W metal film resistors, 1% tolerance
3 × 3300 ohm 0.25W metal film resistors, 1% tolerance
2 × 4.7 ohm 1W resistor
5 × 0.1 uF (100 nF) Ceramic disc capacitor
2 × 10 uF Electrolytic capacitor, 35 volts or higher
1 × 220 uF Electrolytic capacitor, 35 volts or higher
4 × 2200 uF Electrolytic capacitor, 35 volts or higher
1 × LM317T Texas Instruments Power Management ICs / Linear Voltage Regulators and LDOs
1 × LM337T Texas Instruments Power Management ICs / Linear Voltage Regulators and LDOs
1 × 16VAC wallwart adapter (15 to 18VAC can be used) Single AC, 15-18V, with 2.1 mm female connector. See the project details for sources
1 × 2.1 mm male power connector
1 × DG301 - 2 positions Screw terminal
1 × DG301 - 3 positions Screw terminal