Enclosure not stated · 1 knob
RangepigVerified
Based on the Rangepig
From the post
Seems like i'm on fire with the requests today...
Here's Pete Moore's RangePig - an adaptation of Rangemaster with single low gain germanium transistor configured with modern silicon counterpart as darlington. Note that this is a positive ground effect, so you can't daisy chain this with other boxes that use negative ground. A simple pump is always your friend.
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.
Check before you build · 1 value the reader of this layout was not sure of
- 100K in the middle of the board: drawn as a square outline with three pins, read as a trimmer rather than a fixed resistor
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 3 | ||||
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 68K | 68k | read from the layout by eye | |
| ×1 | 3.9K | 3.9k | read from the layout by eye | |
| Capacitors 3 | ||||
| ×1 | 6.8nF | 6.8n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | OC44 | OC44 | PNP Ge (OC44, AC128...); read from the layout by eye | |
| Q2 | 2N3906 | 2N3906 | read from the layout by eye | |
| Potentiometers 1 | ||||
| Level | A10K | A10k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 100K | 100k | read from the layout by eye | |