Enclosure not stated · 2 knobs
Discrete Llama
Based on the Discrete Llama
From the post
Happy New Year, everyone!
Some audiophiles have really gotten into preamps that use discrete opamp—basically using and bunch of individual transistors that make up the internal circuit in an IC. This trend has also made it's way into the guitar world as well. One of the simpler circuits I've seen you can do this with is the Way Huge Red Llama. Inside the CD4049 in your typical Red Llama is essentially a bunch of MOSFETs. John from Electronic Audio Experiments and Alec from Mask Audio Electronics worked on this and Alec sent me the schematic to share with all of you.
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 Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.
Parts list 19 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 4 | ||||
| ×3 | 4.7K | 4.7k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| Capacitors 6 | ||||
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 6 | ||||
| Q1 | BS250 | BS250 | MOSFET; read from the layout by eye | |
| Q2 | BS170 | BS170 | MOSFET; read from the layout by eye | |
| Q3 | BS170 | BS170 | MOSFET; read from the layout by eye | |
| Q4 | BS250 | BS250 | MOSFET; read from the layout by eye | |
| Q5 | BS170 | BS170 | MOSFET; read from the layout by eye | |
| Q6 | BS170 | BS170 | MOSFET; read from the layout by eye | |
| Potentiometers 2 | ||||
| Boost | B1M | B1M | Potentiometer | read from the layout by eye |
| Loud | A100K | A100k | Potentiometer | read from the layout by eye |