Enclosure not stated · 2 knobs
Top Gear Treble BoostVerified
Based on the Top Gear Treble Boost
From the post
Schematic is avaiable HERE. I added a "Boost" control at the end of the circuit since this thung is supposed to be quite loud.
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 Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.
Parts list 14 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 5 | ||||
| ×2 | 3.9M | 3.9M | read from the layout by eye | |
| ×2 | 8.2M | 8.2M | read from the layout by eye | |
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 2.7K | 2.7k | read from the layout by eye | |
| Capacitors 4 | ||||
| ×2 | 22nF | 22n | 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 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N3819 | 2N3819 | JFET; read from the layout by eye | |
| Q2 | BC109C | BC109C | read from the layout by eye | |
| Potentiometers 2 | ||||
| Treble | B1M | B1M | Potentiometer | legend: 1mB (try 500kB); read from the layout by eye |
| Boost | A100K | A100k | Potentiometer | read from the layout by eye |