Enclosure not stated · 1 knob
MXR MC-401 CAE Booster/Line DriverVerified
Based on the MXR MC-401 Boost/Line Driver· 1 other board clones it
From the post
With an added Booster/Buffer switch. Info from the manufacturer about the original:
The MC401 is simple in design but superbly effective in solving a variety of mismatched line level and signal conditioning problems that can occur when combining effects. The MC401's circuit design has been used for years by CAE in the world's best guitarist's rigs to remedy these problems and rejuvenate the sparkle, punch and brilliance that can be lost. It can also be used as an ultra-clean boost (up to +20dB) for solos or to drive effects for more dynamics and sensitivity.
Power: Single 9 volt battery, ECB003 AC Adapter or ECB004 AC Adapter for 18 volt operation (for increased headroom)
And for those of you who like the idea of the extra headroom, here's a version with a charge pump and a 9V/18V switch.
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 Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 13 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 6 | ||||
| ×1 | 100R | 100 | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 4K7 | 4.7k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×3 | 100K | 100k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| Capacitors 4 | ||||
| ×1 | 220n | 220n | read from the layout by eye | |
| ×3 | 10u | 10u | electrolytic; read from the layout by eye | |
| ×1 | 22u | 22u | electrolytic; read from the layout by eye | |
| ×1 | 100u | 100u | electrolytic; read from the layout by eye | |
| ICs 1 | ||||
| IC | LF442 | LF442 | read from the layout by eye | |
| Potentiometers 1 | ||||
| Boost | B100K | B100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Booster/Buffer | SPST | SPST | toggle; legend: Switch is SPST or SPDT; read from the layout by eye | |
Other boards based on the MXR MC-401 Boost/Line Driver
- MC401 Guitar-Electronics.eu · €4.88