Updated Photovore Parts List
Below are the suggested vendors for each of the required parts. While most of the parts are listed under DigiKey, some are also still available from Radio Shack (they are just more expensive).
The most significant change is that Radio Shack no longer carries large photocells (276-116). Instead, look for an assortment pack (276-1657) that has 3 cells of the same type. Typically, you will have to change the values of the trimpots down to 5K (sides) and 1K (center) to get proper responsiveness. You can also get small photocells from Mouser Electronics (1-800-346-6873). A reasonable choice is part number 338-76C348 ($1.84 each).
| Item | Description | Part # | Quant | Unit | Cost |
|---|---|---|---|---|---|
| 1 | SPDT micromini toggle switch | 276-625 | 1 | 2.99 | 2.99 |
| 2 | DPDT micromini toggle switch | 276-626 | 1 | 3.39 | 3.39 |
| 10 |
CdS photocell (get a package with 3 identical devices, use with 2 x 5K + 1 x 1K pots) | 276-1657 | 3 | 2.99/5 | 2.99 |
| typical sales tax | 0.56 | ||||
| Total | $9.93 |
| Item | Description | Part # | Quant | Unit | Cost |
|---|---|---|---|---|---|
| 3 | 2N3906 PNP transistor | 2N3906DICT-ND | 3 | 1.60/10 | 1.60 |
| 5 | 74HC00 quad NAND gate | MM74HC00N-ND | 2 | 0.42 | 0.84 |
| 6 | LM324 quad op amp | LM324N-ND | 1 | 0.88 | 0.88 |
| 7 | 1N914 switching diode | 1N4148CT-ND | 7 | 0.64/10 | 0.64 |
| 8 | Red LED | LT1090-ND | 3 | 1.53/10 | 1.53 |
| 9 | Blinking green LED | LT1043-ND | 1 | 1.25 | 1.25 |
| 11 | SPDT 5V relay | Z100-ND | 2 | 3.27 | 6.54 |
| 12 | DPDT 5V relay | Z767-ND | 1 | 3.02 | 3.02 |
| 13 | 5K trimpot (see item 10) | X201R502B-ND | 2 | 0.50 | 1.00 |
| 14 | 1K trimpot (see item 10) | X201R102B-ND | 1 | 0.50 | 0.50 |
| 15 | 0.1 uf capacitor | P4525-ND | 2 | 1.74/10 | 1.74 |
| 16 | 10 uf capacitor | P6248-ND | 3 | 0.09 | 0.27 |
| 17 | 1000 uf capacitor | P6205-ND | 1 | 0.26 | 0.26 |
| 18 | 470 ohm resistor | 470EBK-ND | 3 | 0.28/5 | 0.28 |
| 19 | 4.7K resistor | 4.7KEBK-ND | 4 | 0.28/5 | 0.28 |
| 20 | 15K resistor | 15KEBK-ND | 1 | 0.28/5 | 0.28 |
| 21 | 4 AA cell battery holder | BC4AAW-ND | 1 | 1.10 | 1.10 |
| 22 | 14 pin IC socket | A9314-ND | 3 | 0.08 | 0.24 |
| postage and handling | 8.00 | ||||
| Total | $30.25 |
| Item | Description | Part # | Quant | Unit | Cost |
|---|---|---|---|---|---|
| 4 | Red Fox toy car by Echopro | 084012 | 1 | 14.99 | 14.99 |
| typical sales tax | 0.90 | ||||
| Total | $15.89 |
GRAND TOTAL = $56.07
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Last updated 8/18/98