1590BB2 · 7 knobs
Dopamine Preamp
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- Category
- Preamp / Amp-in-a-box
- Price
- $14.00in stock
From the vendor
Two-channel tube guitar preamp. Two channels: OD1 (from clean sound to crunch) and OD2 (from mid-gain to hi-gain overdrive). Each channel has gain and volume controls. A three-band EQ is shared by both channels. ECC83/12AX7 or 6Н2П-ЕВ tubes (2 pcs) are used. 6Н2П-ЕВ/12AX7 switchable heater via jumpers on the tube board. Power supply: regulated mains adapter 12 VDC (load current of 1 A or more). To power the tube plates an internal DC-DC high voltage boost power converter is used (Nixie type). The dimensions of the main PCB 84 x 100 mm. Enclosure type: Hammond 1590BB2.
Schematic
The schematic is in the vendor's build document. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 52 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 17 | ||||
| ×1 | 820 | 820 | Metal film resistors 0.6W-S 820 Ohm | |
| ×2 | 1k | 1k | Metal film resistors 0.6W-S 1k | |
| ×1 | 1k5 | 1.5k | Metal film resistors 0.6W-S 1k5 | |
| ×1 | 2k7 | 2.7k | Metal film resistors 0.6W-S 2k7 | |
| ×4 | 10k | 10k | Metal film resistors 0.6W-S 10k | |
| ×1 | 22k | 22k | Metal film resistors 0.6W-S 22k | |
| ×1 | 33k | 33k | Metal film resistors 0.6W-S 33k | |
| ×1 | 68k | 68k | Metal film resistors 0.6W-S 68k | |
| ×1 | 100k | 100k | Metal film resistors 0.6W-S 100k | |
| ×1 | 330k | 330k | Metal film resistors 0.6W-S 330k | |
| ×2 | 470k | 470k | Metal film resistors 0.6W-S 470k | |
| ×1 | 750k | 750k | Metal film resistors 0.6W-S 750k | |
| ×9 | 1M | 1M | Metal film resistors 0.6W-S 1M | |
| ×3 | 100k | 100k | Metal film resistor 1W-S 100k | d3.5 L10 |
| ×1 | 220k | 220k | Metal film resistor 1W-S 220k | d3.5 L10 |
| ×1 | 4k7 | 4.7k | Metal oxide film resistor 1W 4k7 | |
| ×1 | 470k | 470k | Metal film resistor 1W 470k | |
| Capacitors 14 | ||||
| ×1 | 470p | 470p | Ceramic disc capacitor 470p 1kV | Ceramic disc capacitor |
| ×1 | 680p | 680p | Ceramic disc capacitor 680p 1kV | Ceramic disc capacitor |
| ×1 | 1000p | 1n | Ceramic disc capacitor 1000p 1kV | Ceramic disc capacitor |
| ×1 | 10n | 10n | Ceramic disc capacitor 10n 1kV | Ceramic disc capacitor |
| ×2 | 100n | 100n | Monolithic ceramic capacitor X7R 100n 50V | Monolithic ceramic capacitor |
| ×1 | 2n2 | 2.2n | Film capacitor (R=5mm) 2n2 63V | Film capacitor |
| ×1 | 2n2 | 2.2n | Polyester film capacitor (R=5mm) 2n2 400V | Polyester film capacitor |
| ×3 | 22n | 22n | Polyester film capacitor (R=10mm) 22n 400V | Polyester film capacitor |
| ×1 | 100n | 100n | Polyester film capacitor (R=5mm) 100n 63V | Polyester film capacitor |
| ×3 | 470n | 470n | Polyester film capacitor (R=5mm) 470n 63V | Polyester film capacitor |
| ×1 | 10u | 10u | Electrolytic capacitor 10µ 25V | Electrolytic capacitor; d5.5 h11 |
| ×2 | 22u | 22u | Electrolytic capacitor 22µ 25V 85°C | Electrolytic capacitor; d5.5 h11 |
| ×2 | 10u | 10u | Electrolytic capacitor 10µ 400V 105°C Low ESR | Electrolytic capacitor; d10 h20 |
| ×1 | 470u | 470u | Electrolytic capacitor 470µ 25V 105°C | Electrolytic capacitor; d10 h14 |
| Diodes 3 | ||||
| ×1 | UF4007 | UF4007 | Diode UF4007 | |
| ×1 | 1N4007 | 1N4007 | Diode 1N4007 | |
| ×4 | 1N4148 | 1N4148 | Diode 1N4148 | |
| Transistors 5 | ||||
| ×2 | BC547C | BC547C | Transistor BC547C | |
| ×1 | BC557C | BC557C | Transistor BC557C | |
| ×1 | IRF740 | IRF740 | Transistor IRF740 | |
| ×1 | J177 | J177 | Transistor MMBF J177 | SMD (MMBF) |
| ×1 | MMBF5457 | MMBF5457 | Transistor MMBF5457 | |
| ICs 1 | ||||
| ×1 | NE555 | NE555 | IC NE555 DIP8 | |
| Inductors 1 | ||||
| ×1 | Inductor CDRH127-221 MC 220uH 1,16A | INDUCTOR CDRH127-221 MC 220UH 1,16A | Inductor CDRH127-221 MC 220uH 1,16A | |
| Potentiometers 4 | ||||
| ×1 | B25k | B25k | Potentiometer RK097N B25k | |
| ×1 | B250k | B250k | Potentiometer RK097N B250k | |
| ×2 | A250k | A250k | Potentiometer RK097N A250k | |
| ×3 | A1M | A1M | Potentiometer RK097N A1M | |
| LEDs 1 | ||||
| ×2 | Red ultra bright 3mm LED | RED ULTRA BRIGHT 3MM LED | Red ultra bright 3mm LED | |
| Other 6 | ||||
| ×2 | Relay HFD23-012-1S | RELAY HFD23-012-1S | Relay HFD23-012-1S | |
| ×2 | tube 12AX7/ECC83 | TUBE 12AX7/ECC83 | Vacuum tube 12AX7/ECC83 | or 6H2П-EB |
| ×1 | Heat sink RAD DY-CN-020 | HEAT SINK RAD DY-CN-020 | Heat sink RAD DY-CN-020 | 22x10x15 |
| ×2 | Connector PLS-2 | CONNECTOR PLS-2 | Connector PLS-2 | DS1021-1x2 |
| ×1 | Connector PLS-40R | CONNECTOR PLS-40R | Connector PLS-40R | DS1022-1x40RDF |
| ×1 | Uninsulated ring terminal 12.5mm hole | UNINSULATED RING TERMINAL 12.5MM HOLE | Uninsulated ring terminal 12.5mm hole | |