Roland • TR-66 Rhythm Arranger

The TR-66 is probably the simplest of the old drum machines. It is a very slimmed down CR-68 (as if that wasn't already slim enough). Roland sure scrimped on this one, there are only 27 preset patterns which are selected by a combination of switches and the bank buttons. There's little edit ability: 3 variations, a tempo knob and a balance knob. The typical waltz, rock, bossa nova, swing, shuffle and tango type presets are available.
Offering little or no use to modern day music production, this machines original purpose was to provide simple backup beats for solo organ playing or other instrument practice. It simply is far too un-flexible for any studio work but it is a nice addition to any vintage gear collection.
Bass Drum
High Conga
Low Bongo
High Bongo
Cow Bell
Claves
Snare Drum
Rim Shot
Hi Hat/Maracas
Cymbal
Sadly, there's no trigger out. Patterns can be combined, and there are some variations (every 2/4 bars) so really there's more than just 27 presets.