Enclosure not stated · 1 knob
LM390 Bass Boosting Amplifier
Schematic
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Parts list 11 rows
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Check before you build · 1 value the reader of this schematic was not sure of
- Bypass cap: no value drawn, optional
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 3 | ||||
| ×2 | 180 | 180 | ohms; read from the schematic by eye | |
| ×1 | 10k | 10k | read from the schematic by eye | |
| ×1 | 2.7 | 2.7 | 2.7 ohms, Zobel; read from the schematic by eye | |
| Capacitors 6 | ||||
| ×1 | 0.1uF | 100n | read from the schematic by eye | |
| ×1 | 20uF | 20u | electrolytic; read from the schematic by eye | |
| ×1 | 0.033uF | 33n | read from the schematic by eye | |
| ×1 | 0.05uF | 50n | read from the schematic by eye | |
| ×1 | 500uF | 500u | electrolytic, output coupling; read from the schematic by eye | |
| ×1 | ? | ? | optional BYPASS cap on pin 1 (dashed), no value given; read from the schematic by eye | |
| ICs 1 | ||||
| ×1 | LM390 | LM390 | 1W battery-operated power amplifier; read from the schematic by eye | |
| Potentiometers 1 | ||||
| Volume | 10k | 10k | Potentiometer | input level pot; read from the schematic by eye |