Enclosure not stated · 2 knobs
Run Off Groove Condor Cab SimVerified
Based on the Run Off Groove Condor· 3 other boards clone it
- Category
- Preamp / Amp-in-a-box
- Build
- Perfboard
- Layout
- Verified · Effects Layouts (blog) marks it as built and working
- Tags
- Cab Sim, Run Off Groove
From the post
Part of the last request included a cab simulator to run the headphone amp through. The ROG Condor is a great cab sim and has a fairly low parts count. It uses a JFET amplifier at the input, boosting the signal to drive the following 3 filters (Bridged-T notch filter, High-pass filter, and Low-pass filter). Much more info on the circuit can be found here, as well as a few mods. J201 apparently sounds the best for Q1, but similar DSG pinout JFETs will also work. Any dual opamps can be used for the 2 ICs, so socket and try the usual candidates (TL072, JRC4558, etc).
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 17 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 4 | ||||
| ×6 | 22K | 22k | read from the layout by eye | |
| ×4 | 100K | 100k | read from the layout by eye | |
| ×2 | 18K | 18k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 6 | ||||
| ×3 | 47nF | 47n | read from the layout by eye | |
| ×2 | 3.9nF | 3.9n | read from the layout by eye | |
| ×2 | 1nF | 1n | read from the layout by eye | |
| ×1 | 15nF | 15n | read from the layout by eye | |
| ×3 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 1 | ||||
| Q1 | J201 | J201 | JFET; legend: J201, 2N5457, etc.; read from the layout by eye | |
| ICs 2 | ||||
| IC1 | dual op-amp | DUAL OP-AMP | legend: Any dual-opamp; read from the layout by eye | |
| IC2 | dual op-amp | DUAL OP-AMP | legend: Any dual-opamp; read from the layout by eye | |
| Potentiometers 2 | ||||
| Gain | B1K | B1k | Potentiometer | read from the layout by eye |
| Volume | A10K | A10k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 100K | 100k | read from the layout by eye | |
Other boards based on the Run Off Groove Condor
- Cab Sim ROG Condor Fuzz Dog · 1590B · £27.60
- Runoffgroove Condor Cab Sim Tagboard Effects
- ROG Condor V1.1 TH Custom Effects · 1590B · €7.65