ORIGINAL MESSAGE: On Wed, 11 Aug 2010 10:45:42 -0400, "Carl" <km1h at jeremy.mv.com> wrote: >A tube arc will take out a >50W zener as fast as a 10W version. REPLY: More nonsense from our favorite supplier. A truly massive arc would take out either one, but an arc just big enough to damage a 10 watt zener would do no harm to a 50 watt. 73, Bill W6WRT