Abstract: A method for cleaning the fixed spring-contacts of a cylindrical, drum-type television tuner or other electrical switch having contact-carrying strips arranged around the circumference of a rotatable drum, in which a cleaning implement is attached to the drum and is rotated into engagement with the fixed contacts so as to clean the same. The implement includes a support for attachment to the drum and a cleaning element on the support for engaging and cleaning the spring-contacts of the switch upon rotation of the drum. The cleaning element may be a set of eraser pads, an elongated eraser strip, or a coating or layer of abrasive material; and the support element may be made for the attachment to the drum either in superposition with an operative contact-carrying strip or in lieu thereof.