Akashic Guitar effects PCB lookup
BIAS

1590B · 1 knobs

Fuzz Dog· CrimC

Crimson Cockerel Treble Boost

Based on the Red Rooster / Range Master

Category
Boost
Controls
Bias
Difficulty
Easy
Price
£24.00
Tags
boost

From the vendor

The Dallas Range Master. Bedrock of so many classic tones. Beautiful germanium treble boost. Here's a famous 'boutique' version of it that is standard negative-ground while retaining all that germanium goodness.

There's also a Range control, so you can fatten up the frequencies being pushed. Sometimes you just need a little more beef.

We're making the transistor optional, as you may have your own special little vintage piece of history you want to solder in there. If you want one from us we currently have a stock of germaniums that do the trick real nice.

Board-mounted pots for minimal wiring and easy enclosure mounting.

Multimeter recommended for optimal biasing, but it can be done by ear. Don't sweat it.

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.

Inspired by: Red Rooster / Range Master

Difficulty: Easy

PCB size: 50 x 20mm

Knobs required: 1

Enclosure: 1590B

Direct-Connect compatible (4-way)

If you want the kit pre-built you must add the enclosure option below and select your knobs in the Components section. Check Specials for powder-coated enclosure availability.

Download the 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 12 rows

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RefValueNormalizedTypeNotes
Resistors 3
R3470K470k
R468K68k
R5470R470
Capacitors 6
C14n74.7n
C210n10n
C32u22.2uElectrolytic capacitor
C4100n100n
C547u47uElectrolytic capacitor
C622u22uElectrolytic capacitor
Diodes 1
D11N58171N5817
Transistors 1
Q1NPN GermaniumNPN GERMANIUM
Potentiometers 1
BIAS10K trimmer**10K TRIMMER**