Amplifier Parts List

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