Original poster: "Steve White by way of Terry Fritz <twftesla-at-qwest-dot-net>" <slwhite-at-zeus.ia-dot-net> Are pulse caps suitable for use with a VTTC? I am particularly interested in their high frequency suitability. Also, has anyone ever built a VTTC with a 4-1000A tube? Since this tube will handle over 1000 watts, it seems like a good candidate. Steve: Coiling in Iowa