hot 2021 repress black sleeve with two holes! (vinyl part 4/4) voltage festival is releasing a compilation of 4 eps to celebrate five years of existence. the ep s are dedicated to four sub-genres of techno and represent the versatility in techno of voltage festival s line-up. the series starts off with a classic techno ep called zener diode, followed by a deep techno one called wiring harness, an industrial release with the namecircuit breaker and closing with acid techno called resistor.