Original poster: "Jolyon Vater Cox by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jolyon-at-vatercox.freeserve.co.uk> Other than because of the 0.6 volt base-emitter voltage drop what are the reasons if any why a complementary emitter-follower outout stage cannot be used in a "ping tester" for Tesla coils?