| part |
quantity
|
description | source* | alternate source* |
| IC1 |
1
|
differential amp | Digikey INA121PA-ND, $3.40 | |
| IC2 |
1
|
quad op amp | Digikey LT1079CN-ND, $6.25 | |
| C1-2 |
2
|
10 nF | Radio Shack 900-2233, $0.17 | Hosfelt 15-980, $0.05 |
| C3-4 |
2
|
330 pF | Radio Shack 900-2211, $0.07 | Hosfelt 15-886, $0.01 |
| C5-8 |
4
|
27 nF 5% | Allied 264-0153, $0.26 | |
| R1,3,6-8,10-11 |
7
|
100 k | RadioShack 900-0266, $0.07 | Hosfelt 1/4W 100K, $4.00 for 200 |
| R2 |
1
|
1 M | Radio Shack 900-0290, $0.07 | Hosfelt 1/4W 1M, $4.00 for 200 |
| R4 |
1
|
69.8 k 1% | Digi-Key 69.8KXBK-ND, $0.54 for 5 | |
| R5 |
1
|
634 k 1% | Digi-Key 634KXBK-ND, $0.54 for 5 | |
| R9 |
1
|
57.6 k 1% | Digi-Key 57.6KXBK-ND, $0.54 for 5 | |
| R12 |
1
|
49.9 k 1% | Digi-Key 49.9KXBK-ND, $0.54 for 5 | |
| R13 |
1
|
5.62 k 1% | Digi-Key 5.62KXBK-ND, $0.54 for 5 | |
|
1
|
14-pin DIP socket | Radio Shack 900-5739, $0.08 | ||
|
1
|
8-pin DIP socket | Radio Shack 900-5738, $0.08 | ||
|
2
|
9V battery clip | Radio Shack 910-0346, $0.33 | ||
|
1
|
BNC jack | Radio Shack 910-2409, $1.55 | Hosfelt 952, $0.85 | |
|
1
|
red binding post | Radio Shack 910-4243, $0.89 | Electronix Express 0701RR, $0.95 | |
|
1
|
black binding post | Radio Shack 910-4244, $0.89 | Electronix Express 0701RG, $0.95 | |
|
1
|
green binding post | Radio Shack doesn't have green | Electronix Express 0701RB, $0.95 | |
|
2
|
SPST switch | Radio Shack 900-7839, $1.50 | Hosfelt 51-268, $0.75 | |
|
1
|
DPST switch | Radio Shack 900-6921, $2.25 | Hosfelt 51-270, $0.45 | |
|
2
|
1 inch standoff | Radio Shack 910-2997, $0.40 | ||
|
1
|
metal enclosure (BUD CU3003A) | Radio Shack 910-1194, $4.45 |
*See the sources page for full addresses of
these suppliers.Prices were current as of 10/2000 and do not include any quantity
discounts. All parts are available from Radio Shack, DigiKey, and Allied; alternate
sources are listed only when they are significantly cheaper.
www.radioshack.com (not
all parts available at local stores; look for educational discount on web orders)
www.digikey.com
www.alliedelec.com
www.hosfelt.com
www.elexp.com