285

Buchla's 285 Frequency Shifter / Balanced Modulator, an original 200 series module (discontinued): a frequency shifter with its sum and difference outputs, and a balanced modulator with its ring and variable outputs.

Key features

• Frequency shifter: signal, reference and F.M. inputs, sum and difference outputs, two of each
• An internal reference from 0 to 1 kc, or the reference input
• Balanced modulator: signal and reference inputs, ring and variable outputs, its modulation under voltage control