Nicholas Briggs Real Time. Since "Doctor Who" returned to television in 2005, Briggs has provided the voices for several monsters, most notably the Daleks and the Cybermen. Briggs also voiced the Nestene Consciousness in the 2005 episode "Rose", and recorded a voice for the Jagrafess in the 2005 episode "The Long Game". He also provided the voices for the Judoon in both the 2007 and 2008 series as well as the spin-off series The Sarah Jane Adventures, and did the voice of the Ice Warrior Skaldak in the 2013 episode "Cold War". On 9 July 2009, Briggs made his first appearance in
Voice coil principal power limitation on such coils is the thermal softening point of the adhesives which bond the wire to the bobbin, or the bobbin to the spider and coil. Voice coils can be used for applications other than loudspeakers, where time force linearity and long strokes are needed. Some environments like vacuum or space require specific attention during conception, in order to evacuate coil losses. Several specific methods can be used to facilitate thermal drain. The image above shows two ways in which the voice coil is immersed in the magnetic field. The most common method is the "overhung" design