------------ ORIGINAL MESSAGE ------------(may be snipped) On Wed, 07 Jun 2017 17:29:50 +0000, Manfred wrote: > > A linear class C amp is quite a trick. > >Yes, it's tricky, but it can be done. Variable bias controlled by an >error amplifying loop is one way to do it. REPLY: If you're varying the bias to make it linear, it's no longer Class C. 73, Bill W6WRT