Enclosure not stated · 6 knobs
Madbean BirdDogVerified
Based on the Madbean BirdDog
From the post
An old forgotten madbean project based on the pre amp section of solid state Squier 51 amplifier. I really find these SS amp designs interesting and they usually ditorts in an interesting way. The op amp types aren't specified in the schematic but I bet TL072 will work fine. You can also try op amps with bad specs like LM1458 or LM358, things might sound more fuzzy and dirty with these.
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 Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.
Parts list 36 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| ×1 | 10Ω | 10 | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×2 | 1K | 1k | read from the layout by eye | |
| ×1 | 1.5K | 1.5k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×1 | 18K | 18k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×2 | 56K | 56k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| Capacitors 8 | ||||
| ×1 | 10pF | 10p | read from the layout by eye | |
| ×2 | 47pF | 47p | read from the layout by eye | |
| ×2 | 4.7nF | 4.7n | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×4 | 100nF | 100n | read from the layout by eye | |
| ×6 | 1uF | 1u | read from the layout by eye | |
| ×3 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 4 | ||||
| D1 | 1N914 | 1N914 | read from the layout by eye | |
| D2 | 1N914 | 1N914 | read from the layout by eye | |
| D3 | 15V Zener | 15V | read from the layout by eye | |
| D4 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 1 | ||||
| Q1 | 2N5088 | 2N5088 | read from the layout by eye | |
| ICs 2 | ||||
| IC1 | TL072 | TL072 | Dual op amp, Try TL072, 4558 etc.; read from the layout by eye | |
| IC2 | LT1054 | LT1054 | read from the layout by eye | |
| Potentiometers 6 | ||||
| Gain | A50K | A50k | Potentiometer | read from the layout by eye |
| Volume | A50K | A50k | Potentiometer | read from the layout by eye |
| Bass | B100K | B100k | Potentiometer | read from the layout by eye |
| Treble | B50K | B50k | Potentiometer | read from the layout by eye |
| Mid | B50K | B50k | Potentiometer | read from the layout by eye |
| Master | B50K | B50k | Potentiometer | read from the layout by eye |