title: A simple device for the reliable production of varnish-insulated, high-impedance tungsten microelectrodes.
abstract: The construction and operation of a simple device that produces varnish-insulated, high-impedance tungsten microelectrodes for single-unit recording is described. In essence, the device operates as a high-voltage pulse generator whose output creates an arc between a fully insulated tungsten microelectrode and a polished counter-electrode. As a result, insulation is removed reliably and symmetrically from the microelectrode tip. The device is constructed with a minimal outlay of time, skill, and money.
authors.affiliation: Department of Psychology, Program in Neural Science, Bloomington, IN 47405.
authors.forename: M T
authors.initials: MT
authors.lastname: Ciancone
authors.forename: G V
authors.initials: GV
authors.lastname: Rebec
mesh_terms: D004594:Electrophysiology / Q000295:instrumentation*; D008839:Microelectrodes; D014414:Tungsten
chemical_list: D014414:Tungsten