I posted this about a year ago, but it’s worth sharing again since Reverb.com is still offering its Reverb Drum Machines series of sample packs as a free download.
The extensive sample collection features the sounds of over 50 rare and noteworthy drum machines, including Suzuki RPM-40, Roger Linn AdrenaLinn II, Olson Rhythm Instrument, Univox SRA-75, Sequential Circuits DrumTraks, Kent K-220 Rhythm System, Oberheim DMX, Roland CR-78, and many more.
Explore every era of electronic music, with these rhythm composers, preset boxes, and programable drum machines.
Over 50 volumes of vintage, rare, and landmark drum machines that narrate the history of this modern instrument—from the inception of this invention to relevant contemporary devices—this collection covers any and all electronic rhythm needs and sonic character.
You can download the complete collection or any of the 53 packs individually. Includes WAV files of single hits, loops, and an Ableton Live 9 drum rack and MIDI template.
More information: Reverb