Enclosure not stated · 3 knobs
Stephen Douglas Leona V1Verified
Based on the Stephen Douglas Leona V1
From the post
Ok, one more layout today. This one traced by Clément who was very generous to send me the schematic. Once again, thank you!
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 28 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 2 values the reader of this layout was not sure of
- 270nF at column 11, rows C-E: printed clearly, unusual value
- Q2/Q3 '2N2904A' as printed in the legend: printed clearly, unusual part number
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 910K | 910k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×1 | 120K | 120k | read from the layout by eye | |
| ×2 | 9.1K | 9.1k | read from the layout by eye | |
| ×1 | 4.3K | 4.3k | read from the layout by eye | |
| ×1 | 2K | 2k | read from the layout by eye | |
| ×1 | 220Ω | 220 | read from the layout by eye | |
| ×1 | 91Ω | 91 | read from the layout by eye | |
| Capacitors 7 | ||||
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 15nF | 15n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 150nF | 150n | read from the layout by eye | |
| ×1 | 270nF | 270n | read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 4 | ||||
| D1 | 1N5243C | 1N5243C / 13V | 13v Zener; read from the layout by eye | |
| D2 | 1N5243C | 1N5243C / 13V | 13v Zener; read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | read from the layout by eye | |
| D4 | 10v Zener | 10V | optional; read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | 2N404A | 2N404A | Hfe 50; read from the layout by eye | |
| Q2 | 2N2904A | 2N2904A | Hfe 80; read from the layout by eye | |
| Q3 | 2N2904A | 2N2904A | Hfe 120; read from the layout by eye | |
| ICs 1 | ||||
| IC1 | MAX1044 | MAX1044 | MAX1044/ICL7660S; read from the layout by eye | |
| Potentiometers 3 | ||||
| Gain | B5K | B5k | Potentiometer | read from the layout by eye |
| Tone | B50K | B50k | Potentiometer | read from the layout by eye |
| Volume | B250K | B250k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 100K | 100k | read from the layout by eye | |