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NE555 Voltage InverterVerified
Based on the NE555 Voltage Inverter
From the post
Here's a cheaper-to-build alternative for MAX1044/ICL7660 voltage inverter charge pump. According to the documentation, this puppy is capable of 30mA of output current, so it'll be enough for any stompbox use. Circuit isn't as small, as using NE555 timer chip will need couple of resistors and caps to get the job done. Still, simple and small enough. This one is for you guys wanting to get your PNP germanium fuzzes daisy chainable. (and i copied part of the text from the doubler post :))
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 9 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 2 | ||||
| ×1 | 33K | 33k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| Capacitors 4 | ||||
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×2 | 220uF | 220u | electrolytic; read from the layout by eye | |
| ×1 | 470uF | 470u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| D1 | BAT85 | BAT85 | legend: barrier Schottkys, like BAT85, 1N5817, 1N5819 or 1N4001-1N4007; read from the layout by eye | |
| D2 | BAT85 | BAT85 | legend: barrier Schottkys, like BAT85, 1N5817, 1N5819 or 1N4001-1N4007; read from the layout by eye | |
| ICs 1 | ||||
| IC1 | NE555 | NE555 | read from the layout by eye | |