RS-120 Comb Filter
Analogue Systems
Comb filter based upon a BBD (bucket brigade device) analogue delay line
https://www.analoguesystems.co.uk/index.php/as-modules/rs120- 10 mA +12V
- 10 mA -12V
- 64 mm Depth
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This module contains an analog high-quality ring modulator and a 1x4 multiplesAC-coupled ring modulator, based around the AD633 multiplier IC. The original frequencies are suppressed and you can hear only the sum of the frequencies (X + Y) and the difference (X-Y).The ring modualtor works very clean. If only one signal is connected you won´t hear anything at the output. That is not the case with most ring mods as often you hear a bleed through.Mild decal wear and tape residue due to age. Other than that works great.
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