Enclosure not stated · 1 knob
Mesa Boogie 5 Band Gyrator EqVerified
Based on the Mesa Boogie 5 Band Gyrator Eq
- Category
- EQ / Filter
- Controls
- Volume
- Build
- Vero· 20×20· 35 cuts, 16 links
- Layout
- Verified · Dirtbox Layouts marks it as built and working
- Tags
- Eq, Mesa Boogie
From the post
A DIY adaption of a Mesa Boogie 5 band eq found in many Mesa Boogie amps. Original tonestack has inductors but is is changed to op amp gyrators. This design was created by Cameron (thanks!) and layouts is verified by AlexS(thanks again, mate!)
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 33 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 1 value the reader of this layout was not sure of
- 910Ω at column 18, rows F-I: standing resistor drawn over a cut, text partly covered but reads 910Ω
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×3 | 1K | 1k | read from the layout by eye | |
| ×2 | 12K | 12k | read from the layout by eye | |
| ×1 | 82K | 82k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 1.5K | 1.5k | read from the layout by eye | |
| ×1 | 910Ω | 910 | read from the layout by eye | |
| ×1 | 56K | 56k | read from the layout by eye | |
| ×2 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 62K | 62k | read from the layout by eye | |
| ×2 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 91K | 91k | read from the layout by eye | |
| Capacitors 12 | ||||
| ×1 | 390pF | 390p | read from the layout by eye | |
| ×1 | 1.2nF | 1.2n | read from the layout by eye | |
| ×1 | 8.2nF | 8.2n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 12nF | 12n | read from the layout by eye | |
| ×1 | 15nF | 15n | read from the layout by eye | |
| ×1 | 68nF | 68n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 1uF | 1u | read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| ICs 3 | ||||
| IC1 | TL074 | TL074 | read from the layout by eye | |
| IC2 | TL074 | TL074 | read from the layout by eye | |
| IC3 | ICL7660S | ICL7660S | read from the layout by eye | |
| Potentiometers 6 | ||||
| 60 Hz | B50K | B50k | Potentiometer | read from the layout by eye |
| 240 Hz | B50K | B50k | Potentiometer | read from the layout by eye |
| 750 Hz | B50K | B50k | Potentiometer | read from the layout by eye |
| 2,2 KHz | B50K | B50k | Potentiometer | read from the layout by eye |
| 6,6 KHz | B50K | B50k | Potentiometer | read from the layout by eye |
| Volume | B100K | B100k | Potentiometer | read from the layout by eye |