Portabellabz EMS VCS3 Oscillator and Noise Generator for Buchla 208
The VCS3 Card for the Buchla 208 brings a slice of classic EMS territory into the Easel, adding oscillator and noise circuits based on the Synthi A and VCS3 designs. The oscillator outputs square and triangle waves simultaneously, with added controls like sync, shape CV and selectable ranges, and tracks solidly across several octaves with multiple scaling options. Alongside it is a variable-colour noise source and a true random voltage generator, offering more unpredictable modulation than the standard 208. Designed to run on the original EMS-style power rails, it integrates with most 208 units, though some early versions may require power or slot modifications to run reliably.
Video: https://youtu.be/kws6ohwPSYI
Product Specs
- Item Number: 42201
- Make: Portabellabz
- Model: EMS VCS3 Oscillator and Noise Generator
- Condition: Very Good
- Finish: Blue
- Categories: keyboards-and-synths ⇒ modular-synth-dsp-cards
- Made In: United States
- MPN: 42201
Product Information
Product Information
Shipping & Returns
Shipping & Returns



Portabellabz EMS VCS3 Oscillator and Noise Generator for Buchla 208
Portabellabz EMS VCS3 Oscillator and Noise Generator for Buchla 208
The VCS3 Card for the Buchla 208 brings a slice of classic EMS territory into the Easel, adding oscillator and noise circuits based on the Synthi A and VCS3 designs. The oscillator outputs square and triangle waves simultaneously, with added controls like sync, shape CV and selectable ranges, and tracks solidly across several octaves with multiple scaling options. Alongside it is a variable-colour noise source and a true random voltage generator, offering more unpredictable modulation than the standard 208. Designed to run on the original EMS-style power rails, it integrates with most 208 units, though some early versions may require power or slot modifications to run reliably.
Video: https://youtu.be/kws6ohwPSYI
Product Specs
- Item Number: 42201
- Make: Portabellabz
- Model: EMS VCS3 Oscillator and Noise Generator
- Condition: Very Good
- Finish: Blue
- Categories: keyboards-and-synths ⇒ modular-synth-dsp-cards
- Made In: United States
- MPN: 42201
Original: $571.66
-65%$571.66
$200.08Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The VCS3 Card for the Buchla 208 brings a slice of classic EMS territory into the Easel, adding oscillator and noise circuits based on the Synthi A and VCS3 designs. The oscillator outputs square and triangle waves simultaneously, with added controls like sync, shape CV and selectable ranges, and tracks solidly across several octaves with multiple scaling options. Alongside it is a variable-colour noise source and a true random voltage generator, offering more unpredictable modulation than the standard 208. Designed to run on the original EMS-style power rails, it integrates with most 208 units, though some early versions may require power or slot modifications to run reliably.
Video: https://youtu.be/kws6ohwPSYI
Product Specs
- Item Number: 42201
- Make: Portabellabz
- Model: EMS VCS3 Oscillator and Noise Generator
- Condition: Very Good
- Finish: Blue
- Categories: keyboards-and-synths ⇒ modular-synth-dsp-cards
- Made In: United States
- MPN: 42201














