| item | descrip | no. | co. | # | no.in pkg. | price | total |
| 555 timer | 555 timer | 24 | RadioShack | 276 1723 | 1 | 1.29 | 30.96 |
| batteries | 1.5 AA | 12 | RadioShack | 230 0873 | 8 | 8.39 | 100.68 |
| batteries | 9V | 4 | RadioShack | 23-883 | 4 | 8.99 | 35.96 |
| batttery holder | 4 AA | 24 | RadioShack | 2700391 | 1.69 | 40.56 | |
| books | electronic | 2 | RadioShack | 1 | 16.00 | 32.00 | |
| breadboard | exp300 | 24 | RadioShack | 276 0175 | 1 | 2.99 | 71.76 |
| bulb | flickering | 1 | AmSciSurplus | 91051 | 1 | 3.25 | 3.25 |
| bulb holder | for household bulbs | 3 | Home Depot | 1 | 0.98 | 2.94 | |
| bulbs | #50, screw, 4.7V | 24 | RadioShack | 272 1133 | 2 | 1.49 | 35.76 |
| bulbs | 25, 75, 100 W | 2 | Home Depot | 2 | 3.00 | 6.00 | |
| cable | 120 | Home Depot | 0.19 | 22.80 | |||
| capacitor | 1MFD 50V | 24 | RadioShack | 272 0996 | 1 | 0.99 | 23.76 |
| capacitor | big | 2 | PASCO | 0.00 | |||
| clip | Fahnstock | 100 | 0.00 | ||||
| clips | colors | 0 | AmSciSurplus | 11586 | 4 | 1.00 | 0.00 |
| compasses | magnetic | 6 | AmSciSurplus | 89321 | 4 | 2.40 | 14.40 |
| diodes | 1 N 4733, 5.1VIW | 12 | RadioShack | 276 0565 | 2 | 0.99 | 11.88 |
| diodes | bag of 50 | 0 | Herbach | TM93GBG0174 | 50 | 3.98 | 0.00 |
| electrical tape | 4 | 0.00 | |||||
| lamp base | screw E10 | 12 | RadioShack | 272 0357 | 4 | 0.00 | |
| LED | 10-20 mA, various color | 3 | AmSciSurplus | 6796 | 12 | 2.25 | 6.75 |
| LED | bi-color | 24 | RadioShack | 276 207 | 2.39 | 57.36 | |
| marbles | 2 | Toys 'R Us | 1.97 | 3.94 | |||
| multimeter | digital, DC:V&I,AC:V, ohms | 0 | Harbor Freight | 41738-0VGA | 1 | 6.99 | 0.00 |
| multimeters | digital, DC:V&I,AC:V, ohms | 12 | RIT | 0.00 | 0.00 | ||
| nails,screws | wood, etc | 1 | Home Depot | 13.00 | 13.00 | ||
| pencil | pure graphite | 1 | art supply | 4 | 2.60 | 2.60 | |
| pliers | needle nose | 2 | RIT | 0.00 | 0.00 | ||
| plugs | 12 | Home Depot | 2 | 0.98 | 11.76 | ||
| power supply | 5-12 VDC | 1 | RIT | 0.00 | 0.00 | ||
| resistors | 1/4 watt, 10 diff. Ohm | 1 | AmSciSurplus | 21970 | 100 | 2.00 | 2.00 |
| resistors | 100 ohm, 1/4W | 0 | RadioShack | 271 1311 | 5 | 0.69 | 0.00 |
| resistors | 10k ohm, 1/4W | 0 | RadioShack | 271 1335 | 5 | 0.69 | 0.00 |
| resistors | 1k ohm, 1/2W | 0 | RadioShack | 271 1118 | 5 | 0.79 | 0.00 |
| resistors | 2.2k ohm, 1/2W | 0 | RadioShack | 271 1121 | 5 | 0.79 | 0.00 |
| resistors | 220 ohm, 1/4W | 0 | RadioShack | 271 1313 | 5 | 0.69 | 0.00 |
| resistors | 220 ohm, 1/4W | 3 | RadioShack | 5 | 0.79 | 2.37 | |
| resistors | 220k ohm, 1/2W | 0 | RadioShack | 271 1132 | 5 | 0.79 | 0.00 |
| resistors | 390 Ohm 1/2 Watt | 0 | RadioShack | 271-1114 | 5 | 0.79 | 0.00 |
| resistors | 470 ohm, 1/2W | 0 | RadioShack | 271 1133 | 5 | 0.79 | 0.00 |
| resistors | 470k ohm, 1/2W | 0 | RadioShack | 271 1115 | 5 | 0.79 | 0.00 |
| samples | for Kim and Andi | 1 | RadioShack | 44.00 | 44.00 | ||
| screw drivers | various | 4 | RIT | 0.00 | 0.00 | ||
| switch | knife | 0 | AmSciSurplus | 38805 | 1 | 2.25 | 0.00 |
| transformer | stepdown 120VAC<-->12VAC | 2 | RadioShack | 273 1385 | 1 | 3.99 | 7.98 |
| transistor | 2N2222A NPN | 0 | Herbach | Q2222 | 1 | 0.24 | 0.00 |
| transistor | MPS3904 | 24 | RadioShack | 276 2016 | 1 | 0.69 | 16.56 |
| wire | 22 gauge | 0 | RadioShack | 278 1224 | 75 ft | 4.49 | 0.00 |
| wire | 22 gauge, 50ft., gray | 0 | AmSciSurplus | 24481 | 50 ft | 1.00 | 0.00 |
| wire | nichrome 24 gauge | 1 | ScienceKit | 63651-24 | 52m | 18.25 | 18.25 |
| wire | steel, 0.008" | 1 | AmSciSurplus | 6296 | 35ft | 2.00 | 2.00 |
| wire strippers | cut and strips | 2 | AmSciSurplus | 32801 | 1 | 2.95 | 5.90 |
| TOTALS | for 24: | $627.18 | |||||
| each | $26.13 | ||||||
| http://www.herbach.com | |||||||
| http://www.aaaim.com/CandH/ | |||||||
| http://www.sciplus.com, 847-982-0870 | |||||||
| http://radioshack.com | |||||||
| http://harborfreight.com | |||||||
| http://sciencekit.com, 800-828-7777 |