Components & Parts
Individual experiment parts and extra components for every Mr Circuit lab kit — the exact same parts that go into each kit, sourced and tested by Gary.
Ships same day
Made in USA
Exact-match lab parts
POs welcomed
Running a classroom? You'll need extra circuit boards.
Add circuit boards
MC1-SET includes one solderless circuit board in kit MC1-00. For students working simultaneously, add one board per student — $3.95 each.
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Mr Circuit MC1 Kits
34 items
Resistors 1/2W ±5 Tan Carbon Film (Free Shipping)
134 items
Resistors 1/2W ±5 Blue Carbon Film (Free Shipping)
63 items
1206 Surface Mount Resistors (Free Shipping)
175 items
0805 Surface Mount Resistors (Free Shipping)
170 items
0603 Surface Mount Resistors (Free Shipping)
170 items
0402 Surface Mount Resistors (Free Shipping)
170 items
0201 Surface Mount Resistors (Free Shipping)
170 items
Electrolytic Capacitors
169 items
Ceramic Disc Capacitors (Free Shipping)
82 items
Zener 1/2 Watt (500mA) (Free Shipping)
34 items
Zener Diodes 1 Watt (Free Shipping)
28 items
Trim Pots 6x6 Side-Adjust 0.1 Watt (Free Shipping)
14 items
| Product | Stock | Price | Qty & Add to Cart | |
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Trimpot 6x6mm Side-Adjust 100 Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Side-Adjust 200 Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Side-Adjust 500 Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Side-Adjust 1k Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Side-Adjust 2k Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Side-Adjust 5k Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Side-Adjust 10k Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Side-Adjust 20k Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Side-Adjust 50k Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Side-Adjust 100k Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Side-Adjust 200k Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Side-Adjust 500k Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Side-Adjust 1M Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Side-Adjust 2M Ohm - Pack of 10 | In stock |
$5.95 each |
Trim Pots 6x6 Top-Adjust 0.1 Watt (Free Shipping)
13 items
| Product | Stock | Price | Qty & Add to Cart | |
|---|---|---|---|---|
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Trimpot 6x6mm Top-Adjust 100 Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Top-Adjust 500 Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Top-Adjust 1k Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Top-Adjust 2k Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Top-Adjust 5k Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Top-Adjust 10k Ohm - Pack of 10 | In stock |
$5.95 each |
|
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Trimpot 6x6mm Top-Adjust 20k Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Top-Adjust 50k Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Top-Adjust 100k Ohm - Pack of 10 | In stock |
$5.95 each |
|
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Trimpot 6x6mm Top-Adjust 200k Ohm - Pack of 10 | In stock |
$5.95 each |
|
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Trimpot 6x6mm Top-Adjust 500k Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Top-Adjust 1M Ohm - Pack of 10 | In stock |
$5.95 each |
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Trimpot 6x6mm Top-Adjust 2M Ohm - Pack of 10 | In stock |
$5.95 each |
LEDs
5 items
| Product | Stock | Price | Qty & Add to Cart | |
|---|---|---|---|---|
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Red LEDs T 1 3/4 diffused -Pack of 50 - (06001-50) | In stock |
$5.00 each |
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Yellow LEDs T 1 3/4 diffused - Pack of 50 - (06002-50) | In stock |
$5.00 each |
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Green LEDs T 1 3/4 diffused - Pack of 50 - (06003-50) | In stock |
$5.00 each |
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Blue LEDs T 1 3/4 diffused Pack of 50 - (06004-50) | In stock |
$6.00 each |
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Clear (White) LEDs T 1 3/4 diffused - Pack of 50 - (06005-50) | In stock |
$5.00 each |
Nine Volt Snaps (Free Shipping)
2 items
| Product | Stock | Price | Qty & Add to Cart | |
|---|---|---|---|---|
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9-Volt BATTERY SNAPS 6-inch STRANDED leads for soldering - (Pack of 2) FREE SHIPPING | In stock |
$4.98 each |
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9-Volt BATTERY SNAPS 3-inch SOLID leads for Solderless Circuit Board - (Pack of 2) FREE SHIPPING | In stock |
$4.99 each |
Mr Circuit Lab 1 "Basic Electronics" Experiment Parts Bags
19 items
Mr Circuit Lab 2 "Electronic Troubleshooting" Experiment Parts Bags
9 items
| Product | Stock | Price | Qty & Add to Cart | |
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1201-LAB - Complete MR CIRCUIT DELUXE LAB 2 - Book and Lab for "TROUBLESHOOTING ELECTRONIC CIRCUITS with a Digital Multimeter" | In stock |
$49.00 each |
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#1201-MAN - Mr circuit Lab 2 Manual - "TROUBLESHOOTING ELECTRONIC CIRCUITS with a Digital Multimeter" | In stock |
$24.90 each |
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1201-MM DIGITAL MULTIMETER for use with Mr Circuit Lab 2 | In stock |
$12.90 each |
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1201-PARTS - Mr. Circuit Lab 2 COMPLETE SET OF EXPERIMENT PARTS FOR LAB 2 | In stock |
$13.90 each |
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1201-PB1 Parts Bag #1 for Lab 2 Fourteen Assorted Resistors | In stock |
$3.90 each |
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1201-PB2 Parts Bag #2 for Lab 2 - Solderless CB | In stock |
$1.90 each |
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1201-PB3 Parts Bag #3 for Lab 2 - Nine Volt Alkaline Battery | In stock |
$3.90 each |
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1201-PB4 Parts Bag #4 for Lab 2 - One 9V Battery Snap | In stock |
$1.90 each |
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1201-PB5 Parts Bag #5 for Lab 2 - Ten RED LEDs | In stock |
$1.90 each |
Mr Circuit Lab 3 "Digital Logic Gates" Experiment Parts Bags
14 items
Mr Circuit Lab 5 "Digital Magic" Experiment Parts Bags
16 items
Resistors 1/4 Watt ±5% Carbon Film (Free Shipping)
97 items
Same-day shipping
Orders placed before 2 PM MST
Made in USA
Assembled in San Luis Obispo, CA
Exact-match parts
The same components in every kit
POs accepted
School purchase orders welcome













































































































































































































































































































































































































































































































































































































































































