Whats up with the swell circuit on the Foxx Tone Machine PCB?
From R.G. Keen: I should have saved my comments on this when I originally posted them. The “swell” circuit on the Prescription Electronics pedal is exactly the same circuit as a 1968(about) article in Popular Electronics by Anthony Leo about building an entire distortion circuit, but it’s modestly mis-used to take the output at a place that has a DC level that starts high and drops to about zero over a bit of time. It’s also DC coupled out, so the DC level is transferred to the input of the amp that you plug it into. This DC level pushes the input bias of amps that are DC coupled at the input into not carrying signal.
Related Questions
- Is the implementation of EBG structures into printed circuit boards something that can be done with standard PCB design and assembly processes, or would a new tool set need to be developed?
- What is often cited as the most difficult frequency range to suppress noise at the printed circuit board (PCB) level?
- Whats up with the swell circuit on the Foxx Tone Machine PCB?
