1590BB2 · 1 knob
Steddi Go
- Category
- Preamp / Amp-in-a-box
- Controls
- Volume
- Price
- $15.00in stock
From the vendor
I.Steddi Go is a clean tube preamp/D.I. for guitar and bass. It was designed to be as simple as possible, with only a volume control. It has an additional switch on the face to allow the 1/4″ output to act as a dry-pass through or as an additional preamp output.
Each PCB also includes a “12AX7-LEFT” PCB for mounting the tube socket and a D.I./XLR PCB for mounting the XLR jack, ground lift switch, and D.I. transformer. The optional transformer is the Unagi E4305, the same transformer used in the Sushi Box FX Finally v3, Venus Z, Neptunium, and Grand Slampegg.
Schematic
The schematic is in the vendor's build document, page 4. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 25 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 12 | ||||
| R1 | 100k | 100k | 1/4W Resistor | |
| R5 | 100k | 100k | 1/4W Resistor | |
| R2 | 68k | 68k | 1/4W Resistor | |
| R3 | 1M | 1M | 1/4W Resistor | |
| R4 | 1k5 | 1.5k | 1/4W Resistor | |
| R6 | 1k | 1k | 1/4W Resistor | |
| R9 | 1k | 1k | 1/4W Resistor | |
| R7 | 2k2 | 2.2k | 1/4W Resistor | |
| R8 | 220k | 220k | 1/4W Resistor | |
| R10 | 10k | 10k | 1/4W Resistor | |
| R11 | 4k7 | 4.7k | 1/4W Resistor | |
| R12 | 560R | 560 | 1/4W Resistor | |
| Capacitors 4 | ||||
| C1 | 680n | 680n | Film capacitor | |
| C2 | 47u | 47u | Electrolytic capacitor | |
| C3 | 10u | 10u | HV Electrolytic capacitor | 250V |
| C6 | 1n5 | 1.5n | Film capacitor | |
| Diodes 3 | ||||
| D1 | 1N5817 | 1N5817 | Schottky diode | |
| D2 | UF4007 | UF4007 | Ultra-fast rectifier | |
| D3 | 1N4007 | 1N4007 | Generic rectifier | |
| Transistors 2 | ||||
| M1 | IRF740 | IRF740 | N-Channel MOSFET | |
| Q1 | 2N3904 | 2N3904 | NPN Transistor | |
| ICs 1 | ||||
| U1 | NE555 | NE555 | Timer | |
| Inductors 1 | ||||
| L1 | 100uH | 100uH | 100uH 2A Inductor | |
| Potentiometers 1 | ||||
| Volume | A1M | A1M | 9mm Potentiometer | |
| Other 1 | ||||
| V1 | 12AT7 | 12AT7 | Dual Triode | or 12AX7 |