Modulation1979· Boss / Roland (Japan)
Boss CE-2 Chorus
BBD analog chorus — the watery shimmer behind countless '80s clean tones.
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Schematic pending verification
We don't ship reference schematics until they've been hand-authored against authoritative sources (manufacturer service docs, ElectroSmash analyses, GEOFEX writeups) and reviewed in the simulator. Until then, the BOM, signal chain, controls and mod notes below are accurate, and you can still add this pedal to a project — it just won't include a circuit yet.
About
A short BBD delay (MN3007, ~5 ms) modulated by a triangle LFO is mixed with the dry signal to create pitch-shifted detune that our ears hear as 'chorus'. Two knobs: Rate and Depth. No second output — mono chorus only on the original.
Signal chain preview
5 stagesInput
Input buffer
MN3007 BBD short delay (clocked by MN3101)
LFO sweeps BBD clock → varying delay time
Summing amp: dry + delayed wet
Output buffer
Output
Quick facts
- The CE-1 was the first commercial chorus pedal (1976); the CE-2 (1979) refined it to a compact box.
- Andy Summers' 'Walking on the Moon' clean tone leans heavily on a CE-2.
- Modern CE-2W reissue offers both CE-1 and CE-2 modes plus stereo.
Controls
- Rate (100k linear pot)
- Depth (100k linear pot)