“The combination of BBD (bucket brigade) technology and exclusive noise reduction circuit allows the SAD-1 to offer a superior long or short delay without the noise commonly found in many analog delay units. The SAD-1 uses one MN3205 BBD low noise delay chip which is driven by a single MN3102 clock driver chip.”
There are two versions of this effect. An early gray case version and a later black case version. Both the black and gray case versions are grouped together here.
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