Britannia
The Brittania is a pedal architecture developed by RunoffGroove.com for the purpose of building a sound-alike pedal of the Vox AC-30 with Top Boost amplifier. 1776effects.com developed the printed circuit board(PCB) to match the schematic developed by ROG.
Thermionic Studios has purchased this PCB and sourced the parts necessary to build this pedal. We are in the process of building the pedal and will have more to report upon completion.
Controls
- Bass
- Treble
- Brilliance
- Gain
- Volume
General Information
http://1776effects.com/wp-content/uploads/2015/03/Britannia-BOM.pdf
The Brittania can be powered by a 9-volt battery, or a tip-negative Boss-style 9-volt power adapter. The transistors must be biased correctly for this pedal to be as accurate sound-wise as possible.
Phase Inversion
Our preliminary look at the schematic indicates that this pedal inverts phase. This will need to be born out by testing and observation.
Pedal Manual
As of this time, 1776effects.com has not issued a separate manual on how to use the pedal. The best reference is either this wiki page, the RunoffGroove entry on their website, or the build manual which describes the architecture of the pedal. RunoffGroove states that when attempting to use a treble booster as follows:
If you would like to use a treble booster at the input of Britannia like Brian May did into the AC-30 Normal channel, we recommend that you start with the following configuration: set the Bass control at maximum, the Treble control at minimum, and the Brilliance control at noon; adjust the Gain control as desired, and then fine-tune the sound to your liking with the Bass, Treble and Brilliance controls. Use of a flat or full frequency booster in front of Britannia will also produce some interesting sounds.
Schematic
Currently only available from the 1776effects build manual and the RunoffGroove website. We'll post it alone here when we can.
