Enclosure not stated · 1 knob
Blue Plate SpecialVerified
Based on the Blue Plate Special
From the post
Simple NPN germanium booster that looks like a nice addition.... From the Dragonfly schematic archive.
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 Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 10 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 4 | ||||
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 180K | 180k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 3.9K | 3.9k | read from the layout by eye | |
| Capacitors 3 | ||||
| ×2 | 22nF | 22n | read from the layout by eye | |
| ×1 | 150pF | 150p | read from the layout by eye | |
| ×2 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Transistors 1 | ||||
| ×1 | OC140 | OC140 | Ge NPN; try OC140, CV7112, AC187, AC127, etc.; read from the layout by eye | |
| Potentiometers 1 | ||||
| Volume | A500K | A500k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 100K | 100k | read from the layout by eye | |