the maracas channel toggles to handclap
(look just under the stylised-R of the Roland logo on: https://en.wikipedia.org/wiki/Roland_TR-808#/media/File:TR-8... for the pair on the original front panel)
(look just under the stylised-R of the Roland logo on: https://en.wikipedia.org/wiki/Roland_TR-808#/media/File:TR-8... for the pair on the original front panel)