1590BB · 4 knobs
Sun Beta Lead
Based on the Sunn Beta Lead
- Category
- Overdrive· Pre-amp
- Controls
- Drive · Bass · Level · Mids
- Difficulty
- Average
- Price
- €11.90out of stock
Heads up Builders widely report inconsistent quality from PCB Guitar Mania boards, and whether a given board works is a gamble. Read recent forum reports before ordering.
From the vendor
Project overview
Inspired by Sunn Beta amplifiers series. Combining the best of the Lead and Bass versions at the flick of a switch.
Introduction
If you love nasty and gritty stoner grunge sludgy doom tones, the Sun Beta lead will nail all your dirty deeds!
Inspired by one of the most famous solid-state amps, this board combines the best of both versions bass and lead versions, just at the flick of a switch, making it suitable for standard tunings and lower sludgy dropped strings or bass!
This preamp is nothing related to anything you have seen before, presenting a unique design, tone, or functionality. Its EQ is super powerful and certainly doesn’t requires to have Tube Screamer in front of it to tighten up its tone. The magic of this amp is on its sludginess and grit. Why would you like to tighten up that?
But does it DOOOOOOM? for sure it does! Crank the drive at max and play some pentatonic glissandos on your drop-down favorite humbucker guitar. It will melt your face off into a sea of grungy sludginess doom.
Controls
• Drive
• Bass
• Level
• Mids
• Treble
For further analysis on this circuit take a look at this thread on Free Stomp Boxes Forum.
For any technical questions regarding this build don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.
Sun Beta Lead 1v3 – Building Docs
Sun Beta Lead – Building Docs
Sun Beta Lead – Drilling templates
Schematic
The schematic is in the vendor's build document, page 5. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 93 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 37 | ||||
| R1 | 1m | 1M | ||
| R2 | 47k | 47k | ||
| R3 | 47k | 47k | ||
| R4 | 2m2 | 0.0022 | ||
| R5 | 100k | 100k | ||
| R6 | 120k | 120k | ||
| R7 | 1m | 1M | ||
| R8 | 100k | 100k | ||
| R9 | 47k | 47k | ||
| R10 | 330k | 330k | ||
| R11 | 22k | 22k | ||
| R12 | 68k | 68k | ||
| R13 | 22k | 22k | ||
| R14 | 68k | 68k | ||
| R15 | 10k | 10k | ||
| R16 | 100k | 100k | ||
| R17 | 100k | 100k | ||
| R18 | 470k | 470k | ||
| R19 | 100k | 100k | ||
| R20 | 120k | 120k | ||
| R21 | 15k | 15k | ||
| R22 | 4k7 | 4.7k | ||
| R23 | 10k | 10k | ||
| R24 | 330k | 330k | ||
| R25 | 1m | 1M | ||
| R26 | 1k5 | 1.5k | ||
| R27 | 1m | 1M | ||
| R28 | 12k | 12k | ||
| R29 | 22k | 22k | ||
| R30 | 15k | 15k | ||
| R31 | 3k3 | 3.3k | ||
| R32 | 12k | 12k | ||
| R33 | 33k | 33k | ||
| R34 | 12k | 12k | ||
| R35 | 220k | 220k | ||
| R36 | 150r | 150 | ||
| R37 | 470r | 470 | ||
| Capacitors 36 | ||||
| C36 | 220u | 220u | ||
| C1 | 200p | 200p | ||
| C2 | 2.2u | 2.2u | ||
| C3 | 33p | 33p | ||
| C4 | 2.2u | 2.2u | ||
| C5 | 5p | 5p | ||
| C6 | 47n | 47n | ||
| C7 | 2n2 | 2.2n | ||
| C8 | 82p | 82p | ||
| C9 | 2.2u | 2.2u | ||
| C10 | 2.2u | 2.2u | ||
| C12 | 33p | 33p | ||
| C13 | 2.2u | 2.2u | ||
| C14 | 56n | 56n | ||
| C15 | 8n2 | 8.2n | ||
| C16 | 15n | 15n | ||
| C17 | 2.2u | 2.2u | ||
| C18 | 100n | 100n | ||
| C19 | 47n | 47n | ||
| C20 | 2.2u | 2.2u | ||
| C21 | 2.2u | 2.2u | ||
| C22 | 22n | 22n | ||
| C23 | 8n2 | 8.2n | ||
| C24 | 5n | 5n | ||
| C25 | 27n | 27n | ||
| C27 | 47n | 47n | ||
| C11 | 10u | 10u | ||
| C26 | 100u | 100u | ||
| C28 | 10u | 10u | ||
| C29 | 10u | 10u | ||
| C30 | 100u | 100u | ||
| C31 | 100u | 100u | ||
| C32 | 100u | 100u | ||
| C33 | 220u | 220u | ||
| C34 | 10u | 10u | ||
| C35 | 220u | 220u | ||
| Diodes 9 | ||||
| D0 | 1n5817 | 1N5817 | ||
| D1 | 1n4148 | 1N4148 | ||
| D2 | 1n4148 | 1N4148 | ||
| D3 | 1n4742 | 1N4742 | ||
| D4 | 1n5817 | 1N5817 | ||
| D5 | 1n5817 | 1N5817 | ||
| D6 | 1n5817 | 1N5817 | ||
| D7 | 1n5817 | 1N5817 | ||
| D8 | 1n5817 | 1N5817 | ||
| ICs 6 | ||||
| IC1 | JRC4558 | JRC4558 | ||
| IC2 | CD4069 | CD4069 | ||
| IC3 | JRC4558 | JRC4558 | ||
| IC4 | JRC4558 | JRC4558 | ||
| IC5 | JRC4558 | JRC4558 | ||
| IC6 | LT1054* | LT1054 | ||
| Potentiometers 4 | ||||
| DRIVE | 1MB | B1M | Potentiometer | |
| BASS | 100KB | B100k | Potentiometer | |
| LEVEL | 100KB | B100k | Potentiometer | |
| MIDS | 100KB | B100k | Potentiometer | |
| Switches 1 | ||||
| SW1 | 4PDT | 4PDT | ||