ORIGINAL MESSAGE: On Fri, 16 Oct 2009 11:39:52 +0200, "BEHIELS JEAN-PIERRE" <ON4AEF at base.be> wrote: >The power supply I will use is full loaded still steady 3111volts DC by a anode current of 1.2A each GS35b valve (totally anode current will be 2.4A) REPLY: Why so much DC current? Are you running them class A? 73, Bill W6WRT