User:Rando/Gain Clone Notes
Jump to navigation
Jump to search
LM3886TF based gainclone amp
- swap out audio receiver for car amp thing
- Fest autio streaming with mic, cabinet audio, and stream audio
- Found a woofer to test with (tbd)
- Impedance matching circuit
Gainclones are a DIY version of a $3000 audio system called the GainCard.
NGALAC possesses a LM3886TF based dual supply amp which requires a split rail +28/-28 DC supply
Example DIY circuits which are easy to build with clear instructions
Error creating thumbnail: Unable to save thumbnail to destination
DIY PSU price is very high, will compare to purchase options
Using computer PSU may be possible after boosting +/-12 to +/-28, however, current on -12V line may not be enough to rate maximum wattage
| Qty | Short Name | Price | Part | Link | Part Total |
|---|---|---|---|---|---|
| 1 | Transformer Dual 28V secondaries, 4.6A Max current | $28.00 | VPS56-2300 | Digikey | $28.00 |
| 16 | Diode | $1.00 | MUR860 | Digikey | $16.00 |
| 4 | Linear Voltage Regulator | $2.10 | LM338T | Digikey | $9.00 |
| 8 | Rectifier Diode | $0.20 | LM4002 | Digikey | $1.60 |
| 4 | 1200uF Radial Aluminum Electrolytic Caps | $1.00 - $6.00 (depending on current) | EEU-FS1J102B | Digikey | $24.00 |
| * | Various Caps and Resistors (1W) | $10.00 | * | * | $10.00 |
| Total | $95.00 | ||||