Bill of Materials
Check to make sure your kit comes with the following parts.Sometimes we make mistakes so double check everything and email support@adafruit.com if you need replacements!
Image |
Name |
Description | Qty |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|
 |
PCB |
Printed circuit board | 1
|
|||||||
 |
IC1 |
TLC551 or similar low voltage '555 timer chip | 1 |
|||||||
 |
Q1 |
NPN transistor, EBC pinout Such as PN2222 or 2N3904 |
1 |
|||||||
 |
Q2 |
PNP transistor, EBC pinout Such as PN2907 or 2N3806 |
1 |
|||||||
 |
C1 |
680pF ceramic capacitor (682) |
1 |
|||||||
 |
C3 |
0.1uF ceramic capacitor (104) | 1 |
|||||||
 |
C2, C4 |
100uF / 10V capacitor | 2 |
|||||||
|
RA |
1/4W 5% 10K resistor Brown, Black, Orange, Gold |
1 |
|||||||
|
RB |
1/4W 5% 300K resistor Orange, Black, Yellow, Gold |
1 |
|||||||
 |
ON/OFF |
Switch | 1 |
|||||||
 |
BATT |
AAA battery holder | 1 |
|||||||
 |
SPK |
Small 8ohm speaker | 1 |
|||||||
 |
Copper foil tape | 6" |
||||||||
 |
Thumbtack | 1 |
||||||||
 |
Pencil | 1 |
||||||||
| Zip Tie | 1 |
|||||||||
| Wire | 6" |
Schematic
