Analog Vocoder information
Specifications and reviews of vintage hardware vocoders.

Korg VC-10
Polyphonic vocoder from the late 70's.

Vocoders and Vocoder-Derivatives
Detailed description of how vocoders work as well as ways of improving results.

Roland VP-330 Vocoder Plus
Keyboard and rack mount vocoder used extensively in electronic music.

Doepfer A-129
Modular 13-band vocoder designed for the A100 modular synthesis system.

PAiA Vocoder
Inexpensive rack mount kit designed by Craig Anderton.

Electrix WarpFactory
MIDI controlled hardware device, several audio demos available.

MAM VF 11
11-band vocoder with integrated filterbank functionality.

Korg MicroKorg
Synthesizer with integrated 8-band vocoder and microphone.

Virtual Vocoder
Flash tutorial explaining all aspects of how vocoders work, including audio examples from several hardware vocoders.