Enclosure not stated · 2 knobs
Schaller TremoloVerified
Based on the Schaller Tremolo· 4 other boards clone it
From the post
Request. I've already done the Hearthrob but someone asked for this, and you can never have too many tremolo options I suppose. Some of those transistors look like they may be difficult to get hold of, so I'd probably just use 2N5088's which work fine in the Hearthrob.
If you do use other transistors make sure the pinouts of your build match the pins shown in the layout.
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 18 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 6 | ||||
| ×2 | 470K | 470k | read from the layout by eye | |
| ×3 | 47K | 47k | read from the layout by eye | |
| ×1 | 27K | 27k | read from the layout by eye | |
| ×2 | 6K8 | 6.8k | read from the layout by eye | |
| ×6 | 2K2 | 2.2k | read from the layout by eye | |
| ×1 | 220R | 220 | read from the layout by eye | |
| Capacitors 5 | ||||
| ×1 | 47n | 47n | read from the layout by eye | |
| ×4 | 4U7 | 4.7u | electrolytic; read from the layout by eye | |
| ×3 | 10U | 10u | electrolytic; read from the layout by eye | |
| ×1 | 22U | 22u | electrolytic; read from the layout by eye | |
| ×1 | 100U | 100u | electrolytic; read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | BC170 | BC170 | read from the layout by eye | |
| Q2 | BC109 | BC109 | BC109 or BC173; read from the layout by eye | |
| Q3 | BC170 | BC170 | read from the layout by eye | |
| Q4 | BC170 | BC170 | read from the layout by eye | |
| Potentiometers 2 | ||||
| Depth | B50K | B50k | Potentiometer | read from the layout by eye |
| Frequency | B1M | B1M | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| ×1 | SPDT | SPDT | 2 position, unnamed; read from the layout by eye | |
Other boards based on the Schaller Tremolo
- Schaller Tremolo Dirtbox Layouts
- Throb Tremolo Fuzz Dog · 1590B · £26.40
- Wabern Moonn Electronics · €5.50
- Tremolow Rullywow Industries · $10.00