demo via AnalogAudio1:
The DIAMOND model 725 is a pretty rare analog rhythm box made by CRB Elettronica, Italy. They had made some nice stuff, like COMPUTER BAND 2000 and VOCO-STRINGS.
The 725 came out 1973. Very stable metal casing - it's built like a tank! It has 12 free combinable rhythm patterns. VOLUME and TEMPO controls.
The bassdrum and snare sound very good! The snare is more realistic than those of other rhythm boxes of that time.