Enclosure not stated
Bob Blick Guitar Preamp
- Category
- Preamp / Amp-in-a-box· Distortion Boost and Overdrive
- Price
- see vendor
- Tags
- Distortion Boost and Overdrive
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 15 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 7 | ||||
| Rg | 100K | 100k | gain resistor; drawing says try 100K (12dB) to 1MEG (30dB); read from the schematic by eye | |
| ×1 | 10K | 10k | input series; read from the schematic by eye | |
| ×2 | 1MEG | 1M | input to ground and bias to + input; read from the schematic by eye | |
| ×1 | 2.2K | 2.2k | LED bias feed from supply; read from the schematic by eye | |
| ×1 | 22K | 22k | feedback leg to ground; read from the schematic by eye | |
| ×1 | 470 | 470 | output series; read from the schematic by eye | |
| ×1 | 100K | 100k | output to ground; read from the schematic by eye | |
| Capacitors 6 | ||||
| ×1 | 220pF | 220p | input to ground; read from the schematic by eye | |
| ×1 | .05uF | 50n | input coupling; read from the schematic by eye | |
| ×1 | 4.7uF | 4.7u | LED bias filter, electrolytic; read from the schematic by eye | |
| ×1 | 1uF | 1u | feedback leg, electrolytic; read from the schematic by eye | |
| ×1 | 4.7uF | 4.7u | output coupling, electrolytic; read from the schematic by eye | |
| ×1 | 100uF | 100u | supply filter, electrolytic; read from the schematic by eye | |
| ICs 1 | ||||
| ×1 | LM741 | LM741 | single op amp; drawing says LM741 for 'tone', TL081 for 'sizzle'; read from the schematic by eye | |
| LEDs 1 | ||||
| ×2 | Red LED | RED LED | two red LEDs in series used as the bias reference; read from the schematic by eye | |