1590BB · 3 knobs
From the vendor
Rather super circuit utilising the blend functionality of the Maestro BrassMaster, put together by Moosapotamus. A somewhat bigger build than your average blend circuit, but well worth the effort. A phase switch means you can flip the signal being sent to the effects loop to alleviate any phase cancellation issues, and a Big Muff tone control on the loop give you a world of possibilities. With pots for Send Level, Return Level, Tone and Thru Level you have complete control over every stage. There's also a Tone Bypass switch for you signal purists. Available in three different enclosure configurations. Those with top-mounted jacks have the controls set further down the face. Works equally well on guitar or bass. The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs. Pot spacing is 22mm - take that into account when choosing knobs. If you want the PCB without parts there's a link for that at the bottom of the page. Kit includes: PCB, all components, hook-up wire, 3PDT footswitch for true bypass, high quality jack sockets, DC socket, battery snap, LED. Enclosure (pre-drilled) is an option with full kits and will not take a battery. Does not include knobs. Difficulty: Medium PCB size: 84 x 32mm Knobs required: 4 Enclosure: 1590BB Direct-Connect compatible (4 or 6 way) If you want the kit pre-build you MUST include the enclosure and choose the board-mounted pots option. Don't forget your knobs! Download the INSTRUCTION PDF
Schematic
The schematic is in the vendor's build document, page 2. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 43 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 21 | ||||
| R1 | 1M | 1M | ||
| R2 | 100R | 100 | ||
| R3 | 150K | 150k | ||
| R4 | 150K | 150k | ||
| R5 | 12K | 12k | ||
| R6 | 1M5 | 1.5M | ||
| R7 | 12K | 12k | ||
| R8 | 150R | 150 | ||
| R9 | 2K2 | 2.2k | ||
| R10 | 2K2 | 2.2k | ||
| R11 | 150K | 150k | ||
| R12 | 33K | 33k | ||
| R13 | 22K | 22k | ||
| R14 | 390 | 390 | ||
| R15 | 10K | 10k | ||
| R16 | 10K | 10k | ||
| R17 | 470K | 470k | ||
| R18 | 10K | 10k | ||
| R19 | 470 | 470 | ||
| R20 | 4K7 | 4.7k | ||
| R21 | 820 | 820 | ||
| Capacitors 14 | ||||
| C1 | 47p | 47p | ||
| C2 | 1u | 1u | elec | |
| C3 | 1u | 1u | elec | |
| C4 | 1u | 1u | elec | |
| C5 | 47n | 47n | ||
| C6 | 1u | 1u | elec | |
| C7 | 1u | 1u | elec | |
| C8 | 3n3 | 3.3n | ||
| C9 | 47n | 47n | ||
| C10 | 1u | 1u | elec | |
| C11 | 1u | 1u | elec | |
| C12 | 1u | 1u | elec | |
| C13 | 10u | 10u | elec | |
| C14 | 22u | 22u | elec | |
| Transistors 5 | ||||
| Q1 | 2N5210 | 2N5210 | ||
| Q2 | 2N5210 | 2N5210 | ||
| Q3 | 2N5210 | 2N5210 | ||
| Q4 | 2N5210 | 2N5210 | ||
| Q5 | 2N5210 | 2N5210 | ||
| Potentiometers 3 | ||||
| SEND | 10KA | A10k | Potentiometer | |
| THRU | 10KA | A10k | Potentiometer | |
| TONE | 100KB | B100k | Potentiometer | |