On Jun 3, 2008, at 1:43 PM, John Loffink wrote: > Where do you buy the H11F3? Mouser and Digi-Key only have the > surface mount part, and don't stock or are backordered on the > through hole part. A few years ago one of my students built a Buchla LPG with an H11 series part instead of a Vactrol. It seemed to work. - Aaron