ISU Audio & Arduino Clubs
GTDT amp – Bill of Materials
Kits are available from G. Tuttle. Request one in person during a regular meeting or by sending him an email.
The 2026 kit price for club members is $10.
The kit includes everything needed to make the PCB for the amp.
In addition, a 12-V RMS transformer or an 18-V DC supply is needed to power the amp. The amp should probably be put into some type of enclosure.
| item | Manufacturer p/n | Digikey p/n | quantity | item cost | total |
|---|---|---|---|---|---|
| Op amp | TI TL082CP | 296-1780-5-ND | 1 | 1.07 | 1.07 |
| Socket | Assmann AR 08 HZL-TT | 123-AR08-HZL-TT-ND | 1 | 0.54 | 0.54 |
| 15-V regulator | STMicro L7815CV | 497-1454-5-ND | 1 | 0.54 | 0.54 |
| diode bridge | Diodes Inc DF01M | DF01MDI-ND | 1 | 0.58 | 0.58 |
| npn BJT | onsemi MJE182G | MJE182GOS-ND | 2 | 1.24 | 2.48 |
| pnp BJT | onsemi MJE172G | MJE172GOS-ND | 2 | 1.22 | 2.44 |
| red LED (5 mm) | Lite-On LTL-307E | 160-1705-ND | 1 | 0.17 | 0.17 |
| 3300-μF capacitors | Nichicon UVZ1E332MHD | 493-1307-ND | 3 | 1.66 | 4.98 |
| 3.3-μF capacitors | TDK FG26X7R1H335KRT06 | 445-173440-1-ND | 2 | 0.80 | 1.60 |
| 330-nF capacitors | TDK FG14X7R1H334KNT06 | 445-173139-1-ND | 3 | 0.30 | 0.90 |
| 150-kΩ resistors | Stackpole CF14JT150K | CF14JT150KCT-ND | 6 | 0.10 | 0.60 |
| 10-kΩ resistors | Stackpole CF14JT10K0 | CF14JT10K0CT-ND | 3 | 0.10 | 0.30 |
| screw terminal - 3 | On Shore OSTVN03A150 | ED10562-ND | 2 | 1.26 | 2.52 |
| screw terminal - 2 | On Shore OSTVN02A150 | ED10561-ND | 1 | 0.87 | 0.87 |
| PCB | Custom | 1 | 2.50 | 2.50 | |
| Total | 22.06 | ||||