Enclosure not stated · 1 knob
DOD 210 FET PreampVerified
Based on the DOD 210 FET Preamp· 2 other boards clone it
From the post
Here we have a small one, an old J FET booster. Polarity protection diode and power filter cap has been added and the 22k Drain resistor is replaced with 50k trimpot so we can socket and try out a wide range of J FETs.
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 10 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 3 | ||||
| ×1 | 3.9M | 3.9M | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| Capacitors 3 | ||||
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 1 | ||||
| Q1 | J113 | J113 | JFET; read from the layout by eye | |
| Potentiometers 1 | ||||
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 50K | 50k | read from the layout by eye | |
Other boards based on the DOD 210 FET Preamp
- DOD 210 FET Preamp Effects Layouts (blog) · 1590A
- DOD 210 FET Preamp Tagboard Effects