Enclosure not stated · 5 knobs
Catalinbread RAHVerified
Based on the Catalinbread RAH· 6 other boards clone it
- Category
- Preamp / Amp-in-a-box
- Build
- Perfboard
- Layout
- Verified · Effects Layouts (blog) marks it as built and working
- Tags
- Amp Emulator, Catalinbread, Overdrive
From the post
This one's for those of you trying to nail some Jimmy Page tones. The RAH emulates the HiWatt heads Jimmy used live in the early days of Zeppelin. It uses only 3 MOSFET transistors, and features a 3-band EQ section. I'm going to shut up now so you can hear Andy from PGS put this thing through its paces.
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 33 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 2 values the reader of this layout was not sure of
- 130Ω at the right edge (column T): printed clearly, unusual value
- D1: the legend says 1N400X, the wiring diagram prints 4001
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×3 | 100K | 100k | read from the layout by eye | |
| ×2 | 22K | 22k | read from the layout by eye | |
| ×2 | 220K | 220k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| ×6 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 130Ω | 130 | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 62K | 62k | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| Capacitors 12 | ||||
| ×3 | 47nF | 47n | read from the layout by eye | |
| ×2 | 1nF | 1n | read from the layout by eye | |
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 680nF | 680n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×2 | 2.2nF | 2.2n | read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×2 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 4 | ||||
| Z1 | 9.1V Zener | 9V1 | read from the layout by eye | |
| Z2 | 9.1V Zener | 9V1 | read from the layout by eye | |
| Z3 | 9.1V Zener | 9V1 | read from the layout by eye | |
| D1 | 1N4001 | 1N4001 | legend: 1N400X; read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | BS170 | BS170 | 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 | |
| Potentiometers 5 | ||||
| Gain | B500K | B500k | Potentiometer | read from the layout by eye |
| Bass | A500K | A500k | Potentiometer | read from the layout by eye |
| Mid | B100K | B100k | Potentiometer | read from the layout by eye |
| Treble | B250K | B250k | Potentiometer | read from the layout by eye |
| Master | A250K | A250k | Potentiometer | read from the layout by eye |
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