Enclosure not stated · 5 knobs
Baja Ampeg SVT Bass AmplifierVerified
Based on the BAJA Ampeg SVT Bass Amplifier Pedal· 1 other board clones it
- Category
- Preamp / Amp-in-a-box
- Difficulty
- Difficult
- Build
- Vero· 24×24· 45 cuts, 23 links
- Layout
- Verified · Tagboard Effects marks it as built and working
- Tags
- Amp Emulation, Ampeg, Baja, Bass, SVT
From the post
Original FSB thread and schematic available here.
I've put the Mid Freq switch components on a separate board to make it easier to box it.
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 51 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 4 values the reader of this layout was not sure of
- 5n film cap, main board left, between the 10n and the 22n: printed clearly, unusual value
- 200n on the inductor board, top right: printed clearly, unusual value
- 1u18 on the inductor board, centre: printed clearly, unusual value
- 3u3 on the inductor board is drawn as a round brown part, not as an electrolytic can; type not stated
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 20 | ||||
| ×2 | 1K | 1k | read from the layout by eye | |
| ×1 | 12K | 12k | read from the layout by eye | |
| ×3 | 100K | 100k | read from the layout by eye | |
| ×4 | 10K | 10k | read from the layout by eye | |
| ×5 | 4K7 | 4.7k | read from the layout by eye | |
| ×1 | 6K8 | 6.8k | read from the layout by eye | |
| ×3 | 820R | 820 | read from the layout by eye | |
| ×2 | 15K | 15k | read from the layout by eye | |
| ×1 | 82K | 82k | read from the layout by eye | |
| ×1 | 5K6 | 5.6k | read from the layout by eye | |
| ×1 | 750R | 750 | read from the layout by eye | |
| ×3 | 22K | 22k | read from the layout by eye | |
| ×1 | 47R | 47 | read from the layout by eye | |
| ×1 | 680R | 680 | read from the layout by eye | |
| ×1 | 68R | 68 | read from the layout by eye | |
| ×1 | 2K2 | 2.2k | read from the layout by eye | |
| ×1 | 330K | 330k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 1M5 | 1.5M | read from the layout by eye | |
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 17 | ||||
| ×4 | 100n | 100n | read from the layout by eye | |
| ×2 | 10n | 10n | read from the layout by eye | |
| ×1 | 180n | 180n | read from the layout by eye | |
| ×4 | 1u | 1u | film; read from the layout by eye | |
| ×1 | 5n | 5n | read from the layout by eye | |
| ×3 | 22n | 22n | read from the layout by eye | |
| ×1 | 220n | 220n | read from the layout by eye | |
| ×2 | 2n2 | 2.2n | read from the layout by eye | |
| ×1 | 180p | 180p | read from the layout by eye | |
| ×2 | 680p | 680p | read from the layout by eye | |
| ×1 | 330p | 330p | read from the layout by eye | |
| ×3 | 10u | 10u | electrolytic; read from the layout by eye | |
| ×1 | 100u | 100u | electrolytic; read from the layout by eye | |
| ×1 | 200n | 200n | inductor board; read from the layout by eye | |
| ×1 | 270n | 270n | inductor board; read from the layout by eye | |
| ×1 | 1u18 | 1.18u | inductor board; read from the layout by eye | |
| ×1 | 3u3 | 3.3u | inductor board; read from the layout by eye | |
| Diodes 1 | ||||
| ×2 | 1N4148 | 1N4148 | D1, D2; read from the layout by eye | |
| Transistors 1 | ||||
| ×1 | 2SK117 | 2SK117 | JFET; read from the layout by eye | |
| ICs 1 | ||||
| ×3 | TL072 | TL072 | read from the layout by eye | |
| Inductors 2 | ||||
| ×2 | 20mH | 20mH | Ind 1, Ind 2; read from the layout by eye | |
| Ind 3 | 10mH | 10mH | read from the layout by eye | |
| Potentiometers 5 | ||||
| Gain | B100K | B100k | Potentiometer | read from the layout by eye |
| Level | B100K | B100k | Potentiometer | read from the layout by eye |
| Bass | A5K | A5k | Potentiometer | read from the layout by eye |
| Treble | A5K | A5k | Potentiometer | read from the layout by eye |
| Mid | B10K | B10k | Potentiometer | read from the layout by eye |
| Switches 4 | ||||
| Mid Freq | 1P5T rotary | 1P5T ROTARY | Switch 1; read from the layout by eye | |
| UltraHigh | SPST | SPST | Switch 2; read from the layout by eye | |
| UltraLow | SPDT | SPDT | Switch 3; read from the layout by eye | |
| Bright | DPDT | DPDT | Switch 4; read from the layout by eye | |
Other boards based on the BAJA Ampeg SVT Bass Amplifier Pedal
- BAJA Ampeg SVT Bass Amplifier Pedal Dirtbox Layouts