Acer Overdrive (Altero Kaede)

MattG

Well-known member
I wrapped this up along with ADHD #2 and #2. It's the Acer Overdrive, based on the Altero Kaede.

I'd never heard of the Altero Kaede until I saw a few build reports of the Acer here. Outside this forum, I found very little discussion of the pedal, and few demos. However, the descriptions here suggested I might like it, in particular that it's super transparent.

Indeed it is very transparent, meaning, it doesn't seem to impart much of its own sound. It's a classic single opamp-based soft clipper, with a pre-gain bass control and post-gain treble control. Plus it has three distinct options for how many diodes are in the clipping circuit. Definitely a cousin of the Timmy, both in terms of circuit topology and transparency.

The enclosure is from my most recent batch of mandala stickers and Envirotex (see also Cattle Driver #4, Aion Amethyst, and Mach 1). That's a cream Tayda 125B enclosure. I think it looks pretty good.

Bypass is my own CMOS inverter based relay bypass scheme.
 

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