1590B
Fuzz Dog· Throb
Throb Tremolo
Based on the Schaller Tremelo
- Category
- Tremolo· Delay/Mod/Filter
- Difficulty
- Medium
- Price
- £26.40
- Tags
- delay-mod-filter
From the vendor
Mark M's modified Schaller Tremolo circuit. A worthy update of a chassic chopper that refines the fought edges and makes it, well... pretty super. From soft, subtle wobble to outright chop, this is a pretty versatile circuit. The speed range has been increased with the addition of a switch to flip between Fast and Slow modes. The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs. Note: the flashing bypass indicator LED function is not compatible with the OptoPuss bypass system. If you want the PCB without parts there's a link for that at the bottom of the page. Partial kit: PCB, all board-mounted components, pots. Full kit: As above, plus footswitch and appropriate daughterboard/components for your selected bypass type (see Downloads section for details of those), jack sockets, DC socket, battery snap, hook-up wire, LED. Enclosure (pre-drilled) is available as an option with full kits, and can take a battery if desired with footswitch positioned 22mm higher, closer to the controls. Knobs are not included. Builds are only available with full kits including enclosure and vertical-mount pots. Please choose appropriate knobs. Inspired by: Schaller Tremelo Difficulty: Medium PCB size: 50 x 40mm Knobs required: 2 Enclosure: 1590B Direct-Connect compatible (4-way) Download INSTRUCTION PDF
Schematic
The schematic is in the vendor's build document, page 3. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 33 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 18 | ||||
| R1 | 47K | 47k | ||
| R2 | 47K | 47k | ||
| R3 | 470K | 470k | ||
| R4 | 2K2 | 2.2k | ||
| R5 | 6K8 | 6.8k | ||
| R6 | 2K2 | 2.2k | ||
| R7 | 330K | 330k | ||
| R8 | 6K8 | 6.8k | ||
| R9 | 6K8 | 6.8k | ||
| R10 | 27K | 27k | ||
| R11 | 2K2 | 2.2k | ||
| R12 | 2K2 | 2.2k | ||
| R13 | 2K2 | 2.2k | ||
| R14 | 47K | 47k | ||
| R15 | 220R | 220 | ||
| R16 | 15K | 15k | ||
| R19 | 1M | 1M | ||
| R20 | 470K | 470k | ||
| Capacitors 9 | ||||
| C1 | 4u7 | 4.7u | ||
| C2 | 22u | 22u | ||
| C3 | 47n | 47n | ||
| C4 | 4u7 | 4.7u | ||
| C5 | 10u | 10u | ||
| C6 | 22u | 22u | ||
| C7 | 22u | 22u | ||
| C8 | 10u | 10u | ||
| C9 | 4u7 | 4.7u | ||
| Diodes 1 | ||||
| D1 | isn’t | ISN’T | ||
| Transistors 4 | ||||
| Q1 | 2N5088 | 2N5088 | ||
| Q2 | 2N5088 | 2N5088 | ||
| Q3 | 2N5088 | 2N5088 | ||
| Q4 | 2N5088 | 2N5088 | ||
| Switches 1 | ||||
| SW1 | SPDT | SPDT | ||