A new apparatus for detection of nu(mu) --> nu(tau) oscillation has been su
ccessfully constructed and operated by the CHORUS Collaboration for the CER
N-WA95 experiment. The design, implementation and performance of the electr
onic trigger system is described. A trigger efficiency of 99% was measured
for nu(mu) charged-current events and 90% for neutral-current events. (C) 1
999 Elsevier Science B.V. All rights reserved.