The following resistors are standard-value 5% tolerance 1∕4 watt carbon film devices. All listed resistors are available in resistor kits from Digi-Key, Jameco, and RadioShack:
| Resistor Kit Description | Supplier | Part # |
| 365 pcs, 5 ea of 1.0Ω to 1.0MΩ | Digi-Key | RS125-ND |
| 540 pcs, 30 values, 10Ω to 10MΩ | Jameco | 103166 |
| 500 pcs, 64 values, 1.0Ω to 10MΩ | RadioShack | 271-312 |
See Resistor Color Codes at http://www.allaboutcircuits.com/vol\_5/chpt\_2/1.html to learn how to read the color bands on carbon film resistors.
| Qty | Value (Ω) | Color Code |
| 1 | 10 | Brown - Black - Black |
| 2 | 100 | Brown - Black - Brown |
| 1 | 330 | Orange - Orange - Brown |
| 1 | 470 | Orange - Orange - Brown |
| 1 | 680 | Blue - Gray - Brown |
| Qty | Value (kΩ) | Color Code |
| 4 | 1.0 | Brown - Black - Red |
| 1 | 1.5 | Brown - Green - Red |
| 1 | 2.2 | Red - Red - Red |
| 2 | 3.3 | Orange - Orange - Red |
| 1 | 4.7 | Yellow - Violet - Red |
| 4 | 5.6 | Green - Blue - Red |
| 2 | 10 | Brown - Black - Orange |
| 1 | 15 | Brown - Green - Orange |
| 1 | 22 | Red - Red - Orange |
| 1 | 33 | Orange - Orange - Orange |
| 2 | 47 | Yellow - Violet - Orange |
| 1 | 100 | Brown - Black - Yellow |
The following potentiometers (variable resistors) are 3/8-inch square single-turn trimming style devices with 1∕2-watt power rating.
| Qty | Description | Digi-Key # |
| 1 | 100Ω trimpot (Bourns 3386P-1-501LF) | 3386P-101LF-ND |
| 1 | 1K trimpot (Bourns 3386P-1-103LF) | 3386P-102LF-ND |
| 2 | 10K trimpot (Bourns 3386P-1-103LF) | 3386P-103LF-ND |
| Qty | Value (μF) | Type |
| 1 | 0.047 | Ceramic |
| 1 | 0.01 | Ceramic |
| 2 | 0.1 | Ceramic |
| 1 | 1 | Electrolytic |
| 1 | 10 | Electrolytic |
| Qty | Description | Digi-Key # |
| 1 | 3.3-mH inductor (Murata Power Solutions 22R335C) | 811-1295-ND |
| 1 | 33-mH inductor (Murata Power Solutions 22R336C) | 811-1294-ND |
| Qty | Description | Digi-Key # |
| 3 | LM317L voltage regulator, 100mA (Texas Instruments) | 296-17221-1-ND |
| 1 | TL072CP dual op amp (Texas Instruments) | 296-1775-5-ND |
| 1 | DG413DJZ quad analog switch (Intersil) | DG413DJZ-ND |
Circuit Specialists part number WB-102,
http://www.circuitspecialists.com/prod.itml/icOid/6885
Circuit Specialists part number WK-1 (350 pieces, pre-formed, 22 AWG),
http://www.circuitspecialists.com/prod.itml/icOid/6920
Circuit Specialists part number MJW-70B (140 pieces, pre-formed, 22 AWG),
http://www.circuitspecialists.com/prod.itml/icOid/7590
Alligator clip style, cut in half with tinned ends.
Circuit Specialists part number M000F0003,
http://www.circuitspecialists.com/prod.itml/icOid/7682