Enclosure not stated · 4 knobs
Moon LNDer Overdrive
Based on the Moon LNDer Overdrive
From the post
Time to dust off the depletion mode MOSFETs in the bin. Here is a quite interesting design using four of these overlooked transistors. It is basically Plexi voiced a low to medium gain overdrive with a James tonestack. Each MOSFET have a3,3k resistors at its Source and according to the schematic these should be adjusted until you get 6-7 DC V at each transistors Drain so I replaced the 3,3k resistors with 5k trimpots, Demo, schematic and writeup by the creator jonn.reckless at DIYSB.
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 24 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 6 | ||||
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×5 | 10K | 10k | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×3 | 100K | 100k | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| Capacitors 7 | ||||
| ×3 | 470pF | 470p | read from the layout by eye | |
| ×2 | 4.7nF | 4.7n | read from the layout by eye | |
| ×3 | 22nF | 22n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×4 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 470uF | 470u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 5 | ||||
| Q1 | LND150 | LND150 | depletion MOSFET; read from the layout by eye | |
| Q2 | LND150 | LND150 | depletion MOSFET; read from the layout by eye | |
| Q3 | LND150 | LND150 | depletion MOSFET; read from the layout by eye | |
| Q5 | LND150 | LND150 | depletion MOSFET; read from the layout by eye | |
| Q4 | BC546B | BC546B | read from the layout by eye | |
| Potentiometers 4 | ||||
| Gain | A1M | A1M | Potentiometer | read from the layout by eye |
| Treble | A1M | A1M | Potentiometer | read from the layout by eye |
| Bass | A1M | A1M | Potentiometer | read from the layout by eye |
| Level | A1M | A1M | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×4 | 5K | 5k | read from the layout by eye | |