Enclosure not stated
Dual Pre Amp and AB box
- Category
- Utility· Buffers Switchers Mixers and Routers
- Price
- see vendor
- Tags
- Buffers Switchers Mixers and Routers
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 12 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 1 value the reader of this schematic was not sure of
- ×1 10k series resistor in channel B second stage: channel A has 20k in the same spot, could be a drawing error
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 4 | ||||
| ×7 | 20k | 20k | input and feedback resistors; read from the schematic by eye | |
| ×1 | 10k | 10k | channel B second-stage input; channel A uses 20k here; read from the schematic by eye | |
| ×2 | 10k | 10k | bias divider; read from the schematic by eye | |
| ×1 | 100ohms | 100 | supply filter; read from the schematic by eye | |
| Capacitors 5 | ||||
| ×4 | 6.8uF | 6.8u | coupling, electrolytic; read from the schematic by eye | |
| ×3 | 10uF | 10u | 2 output coupling, 1 bias filter; read from the schematic by eye | |
| ×5 | 0.1uF | 100n | decoupling, bias and supply; read from the schematic by eye | |
| ×1 | 50uF | 50u | supply filter; read from the schematic by eye | |
| ×1 | 100uF | 100u | supply filter; read from the schematic by eye | |
| ICs 1 | ||||
| ×2 | 5532 | 5532 | NE5532 dual op amp, one per channel; read from the schematic by eye | |
| Potentiometers 1 | ||||
| ×2 | 100k | 100k | Potentiometer | gain control in each second-stage feedback loop; read from the schematic by eye |
| Switches 1 | ||||
| A/B | SPDT | SPDT | output select; read from the schematic by eye | |