Enclosure not stated · 4 knobs
DAM BuzzotronVerified
Based on the DAM Buzzotron· 2 other boards clone it
From the post
For Fuzz Friday, here's the D*A*M Buzzotron with a few modifications (based on H.A.'s suggestions).The Buzzotron is a tweaked Burns Buzzaround, which can also be built on this layout. What I've added is a master volume control and a ICL7660-based voltage inverter. This allows you to power the effect with a standard +9v supply and use PNP germanium transistors like the originals. Here's the Buzzotron and Buzzaround schematics for reference.
And if you're interested in building the original Buzzaround populate the board like this:
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 26 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×1 | 27K | 27k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| ×1 | 680K | 680k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 33K | 33k | read from the layout by eye | |
| Capacitors 8 | ||||
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 2.2uF | 2.2u | electrolytic; read from the layout by eye | |
| ×1 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×1 | 1N34A | 1N34A | printed 1N34a; read from the layout by eye | |
| ×1 | 1N5817 | 1N5817 | printed 5817; read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | NKT213 | NKT213 | read from the layout by eye | |
| Q2 | NKT213 | NKT213 | read from the layout by eye | |
| Q3 | NKT213 | NKT213 | read from the layout by eye | |
| ICs 1 | ||||
| ×1 | 7660 | 7660 | charge pump; read from the layout by eye | |
| Potentiometers 4 | ||||
| Balance | B10K | B10k | Potentiometer | read from the layout by eye |
| Sustain | C100K | C100k | Potentiometer | read from the layout by eye |
| Timbre | B100K | B100k | Potentiometer | legend names it Attack; read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
Other boards based on the DAM Buzzotron
- DAM Buzzotron Dirtbox Layouts
- DAM Buzzotron Tagboard Effects