Buchla systems use three distinct signal types — CV, audio signal, and pulse — on separate connectors

The Buchla 200 series enforces a strict separation of three signal types. Control voltages (CVs) specify parameter levels (0–10V) and travel on banana jacks. Audio signals are the sound-producing material (~1V nominal, up to 20dB over nominal) and use Tini-Jax shielded connectors. Pulses carry timing information and have two voltage levels: 10V for transient triggers, 5V for sustained gates; they also use banana jacks. This physical and conceptual separation makes patching self-documenting and prevents accidental misrouting. A common misconception for Eurorack users is that all modular connections are interchangeable — on the Buchla, connector type enforces signal category, preventing damage and ambiguity.

Examples

Patching a pulse output (red banana) to a CV input (black banana) for triggering; using Tini-Jax cables for audio routing while banana cables carry CVs side by side.

Assessment

Given an unlabeled Buchla patch point, identify its signal category from connector type and jack color. Explain why a 10V pulse and a 5V pulse produce different behaviors at a function generator input.