1590A
SRS EQ ExciterVerified
Based on the SRS EQ Exciter· 2 other boards clone it
From the post
Here's a bit of a rare one for Fuzz Friday. It's essentially a silicon Fuzz Face with an output buffer and a mid scoop tone control. Schematic and rundown of the original here. It should fit in a 1590a with 9mm pots board-mounted. I've also kept the pad (marked NC in the schematic) so if anyone wants to implement the mods outlined in the link above they can. Also PCBs of this (with a few mods) are available in the store now along with 5 other new projects!
And here's a look at the new PCBs on the store now!
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 8 | ||||
| ×2 | 240Ω | 240 | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 68Ω | 68 | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 5 | ||||
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×2 | 220nF | 220n | read from the layout by eye | |
| ×2 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 220uF | 220u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | printed 4001; read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | 2N3565 | 2N3565 | read from the layout by eye | |
| Q2 | 2N3565 | 2N3565 | read from the layout by eye | |
| Q3 | 2N3565 | 2N3565 | read from the layout by eye | |
| Potentiometers 2 | ||||
| EQ | B1K | B1k | Potentiometer | read from the layout by eye |
| Gain | A20K | A20k | Potentiometer | read from the layout by eye |
Other boards based on the SRS EQ Exciter
- SRS Eq Exciter w. gain ctrl Dirtbox Layouts
- SRS EQ Exciter Fuzz Dog · 1590B · £25.20