Enclosure not stated · 1 knob
DAM MeatheadVerified
Based on the D*A*M Meathead· 7 other boards clone it
From the post
Info about the original:
The Meathead. Often imitated, never surpassed. Little box, big idea. Caveman style fuzz tones for killing dinosaurs. Crank it up and hit that switch. Ka-pow! The flavour is thick and raw with a throaty woody bark. Optimum clarity and saturation are delivered with a long syrupy sustain at mountainous volumes. The bass to treble response is perfectly balanced for a heavy but dynamic fuzz tone that will project as well as it can saturate. A most excellently low background noise is achieved through careful transistor selection and biasing which further enforces the Meathead's fluid and articulate sonic capabilities.
Control
Just the one. Even through the Meathead has only one control different tones can be achieved. As the Dirt control is increased the signal not only becomes louder but slightly more saturated. Unity with your clean tone will be reached around noon thus giving you a great deal of volume boosting and drive capabilities. Lowering the guitars volume control will make the overall tone fizzier and increase the treble response. Start out the Dirt control set at noon and increase or decrease as necessary. The greater headroom your amplifier has the greater the amount of volume boost the Meathead will deal out. The Meathead will also respond well to dirty or driven amplifiers. Used like this the Meathead will increase in intensity as the Dirt control is increased.
More compact version:
(kit is for the larger layout with an axial filter cap)
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 15 rows
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Check before you build · 3 values the reader of this layout was not sure of
- Small ceramic cap left of the 2N3904 printed '470' with no unit, presumably 470pF
- Small ceramic cap at board centre printed '47' with no unit, presumably 47pF
- Pot is drawn without a knob name; entered as Volume because lug 2 goes to Output
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 6 | ||||
| ×1 | 120K | 120k | read from the layout by eye | |
| ×1 | 2K2 | 2.2k | read from the layout by eye | |
| ×1 | 820R | 820 | read from the layout by eye | |
| ×1 | 18K | 18k | read from the layout by eye | |
| ×1 | 4K7 | 4.7k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| Capacitors 6 | ||||
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 22nF | 22n | read from the layout by eye | |
| ×1 | 470pF | 470p | ceramic, unit not printed, presumably pF; read from the layout by eye | |
| ×1 | 47pF | 47p | ceramic, unit not printed, presumably pF; read from the layout by eye | |
| ×1 | 10u | 10u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N3904 | 2N3904 | read from the layout by eye | |
| Q2 | BC182L | BC182L | read from the layout by eye | |
| Potentiometers 1 | ||||
| Volume | B500K | B500k | Potentiometer | knob not named on the drawing; wired to Output; read from the layout by eye |
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