Enclosure not stated
Transistor headphone amplifier
- Category
- Other· Amplifiers and VCAs
- Price
- see vendor
- Tags
- Amplifiers and VCAs
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 14 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 4 | ||||
| R1 | ? | ? | no value on drawing; feedback/bias resistor; read from the schematic by eye | |
| R2 | ? | ? | no value on drawing; bootstrap/collector load; read from the schematic by eye | |
| R3 | ? | ? | no value on drawing; read from the schematic by eye | |
| R4 | ? | ? | no value on drawing; supply series resistor; read from the schematic by eye | |
| Capacitors 4 | ||||
| C1 | ? | ? | electrolytic, no value on drawing; read from the schematic by eye | |
| C2 | ? | ? | electrolytic, no value on drawing; read from the schematic by eye | |
| C3 | ? | ? | electrolytic supply bypass, no value on drawing; read from the schematic by eye | |
| C4 | ? | ? | electrolytic output coupling, no value on drawing; read from the schematic by eye | |
| Diodes 2 | ||||
| D1 | Diode | DIODE | no part number given; bias diode; read from the schematic by eye | |
| D2 | Diode | DIODE | no part number given; bias diode; read from the schematic by eye | |
| Transistors 3 | ||||
| Q1 | BC549 | BC549 | read from the schematic by eye | |
| Q2 | BC549 | BC549 | read from the schematic by eye | |
| Q3 | BC559 | BC559 | read from the schematic by eye | |
| Potentiometers 1 | ||||
| P1 | ? | ? | Potentiometer | volume pot, no value on drawing; read from the schematic by eye |