Integrated circuits |
Instrumentation Amplifier (8-pin IC) |
1 |
Digi-Key Electronics |
595-INA128PA |
Texas Instruments |
Operational Amplifier (8-pin IC) |
1 |
Digi-Key Electronics |
296-1410-5-ND |
Texas Instruments |
Audio Amplifier (8-pin IC) |
1 |
Digi-Key Electronics |
296-44414-5-ND |
Texas Instruments |
Virtual ground (8-pin IC) |
1 |
Digi-Key Electronics |
296-6550-5-ND |
Texas Instruments |
Capacitors |
Capacitor (C1 & C2): 0.022 μF (polyester-film) |
2 |
Digi-Key Electronics |
BC1080CT-ND |
Vishay BC Components |
Capacitor (C3): 22 μF (electrolytic) |
1 |
Digi-Key Electronics |
P1177-ND |
Panasonic |
Capacitor (C4): 2.2 nF (ceramic) |
1 |
Digi-Key Electronics |
490-8667-ND |
Murata Electronics |
Capacitor (C5 & C10): 0.22 μF (polyester film) |
2 |
Digi-Key Electronics |
445-8620-ND |
TDK |
Capacitor (C6): 0.002: μF (ceramic) |
1 |
Digi-Key Electronics |
1268PH-ND |
Vishay BC Components |
Capacitor (C7): 47 pF (ceramic ) |
1 |
Digi-Key Electronics |
399-9737-ND |
Kemet |
Capacitor (C8 & C11): 470 μF (electrolytic) |
2 |
Digi-Key Electronics |
P1170-ND |
Panasonic |
Capacitor (C9): 0.047 μF (polyester-film) |
1 |
Digi-Key Electronics |
BC1082CT-ND |
Vishay BC Components |
Resistors |
Resistor (R1): 620 Ω 0.6W 1% axial |
1 |
Digi-Key Electronics |
BC4229CT-ND |
Vishay BC Components |
Resistor (R2 & R3): 1 MΩ 0.25W 1% axial |
2 |
Digi-Key Electronics |
RNF14FTD1M00CT-ND |
Stackpole Electronics |
Resistor (R4 & R5): 56 KΩ 0.4W 1% axial |
2 |
Digi-Key Electronics |
BC3536CT-ND |
Vishay BC Components |
Resistor (R6): 270 KΩ 0.25W 1% axial |
1 |
Digi-Key Electronics |
RNV14FAL270KCT-ND |
Stackpole Electronics |
Resistor (R7): 10Ω 0.25W 1% axial |
1 |
Digi-Key Electronics |
10.0XBK-ND |
Yageo |
Sockets |
IC socket: 8-pin |
4 |
Digi-Key Electronics |
AE9986-ND |
Assmann WSW |
Connector socket (JP6 in Version B only) |
1 |
Digi-Key Electronics |
1212-1179-ND |
Preci-Dip |
Connector header (3 pos male, 2.54 mm) (JP2, JP3, JP4) |
3 |
Digi-Key Electronics |
Z5650-ND |
Omron Electronics Inc. |
Connector header (2 pos male, 2.54 mm) (JP1, SPK, BATT) |
3 |
Digi-Key Electronics |
732-5315-ND |
Wurth Electronics Inc. |
Enclosure |
Die-cast aluminum enclosure, black powder coating |
1 |
Mouser Electronics |
546-1590WP1BK |
Hammond |
Steel L bracket (to partition PCB/battery bays) |
2 |
Home Depot |
100375047 |
Simpson Strong-Tie |
Acrylic sheet: 2 mm thick (affix under PCB) |
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Packing sponge (10 mm thick, cut to size as needed) |
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22 awg solid wire (green - ground from PCB to chassis) |
- |
Amazon.com |
10-HS22K6-25 |
Circuit-Test |
Battery pack |
Battery holder AA 6 cell 6" lead |
1 |
Digi-Key Electronics |
BH26AAW-ND |
Memory Protection Devices |
JST XH 2.5-2 Pin Male Connector Plug/wire |
1 |
Amazon.com |
B01DUC1NDM |
Daier |
Neck-strap fittings |
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Jig Latch Bolt (1/4 inch thread) |
2 |
Guardian Catalog.com |
832850-G |
Gibraltar Products |
1/4 in. -20 Thread Pitch Chrome Nylon Lock nut |
2 |
Home Depot |
204604732 |
Everbilt |
1/4 in. Zinc plated steel internal tooth lock washer |
2 |
Home Depot |
204276525 |
Everbilt |
1/4 in. Bonded Sealing Washer |
4 |
Home Depot |
204276438 |
Everbilt |
Probe input |
Lemo Female panel-mounted |
1 |
BKT Supply Co. Inc |
EGG.2K.303.CLL |
Lemo |
22 awg solid wire (green - ground, red and black - inputs) |
- |
Amazon.com |
10-HS22K6-25 |
Circuit-Test |
Loudspeaker |
Speaker: 8Ω 250 mW, 500 Hz-7.8 kHz, polymer cone |
1 |
Digi-Key Electronics |
102-1184-ND |
CUI Inc. |
JST XH 2.5-2 Pin Male Connector Plug/wire |
1 |
Amazon.com |
B01DUC1NDM |
Daier |
Switch |
3-way 3PDT toggle switch |
1 |
Mouser Electronics |
506-MTE306E |
TE Connectivity/Alcoswitch |
Black 1/4-40 switch toggle boot seal |
2 |
Mouser Electronics |
506-B1440004 |
TE Connectivity/Alcoswitch |
Connector socket (3 pos female, 2.54 mm) |
3 |
Digi-Key Electronics |
1212-1180-ND |
Preci-Dip |
22 awg stranded wire (black - ground, red - inputs, green VCC) |
- |
Amazon.com |
FBA_10-HT22K6-25 |
Circuit-Test |
Strap |
Quick detach swivels 14033 (1 1/4") |
1 |
Walmart.com |
563509662 |
Uncle Mike's |
Yellow polypropylene strap 1" yellow |
1 |
Craft E-corner |
115838 |
Unknown |
Probe |
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Lemo male cable-mounted |
1 |
BKT Supply Co. Inc |
FGG.2K.303.CLAC55Z |
Lemo |
Cable strain relief thick cable version) |
1 |
Mouser Electronics |
736-GMA2B060DN |
Lemo |
Shielded microphone cable 6 mm diameter (2.13 m) |
1 |
Amazon.com |
B01JNLUA5G |
AmazonBasics |