hello all, so i have a 2m gs-35b running 4100 no load on the plate. i have a 30v 50w zener for bias. when keyed it gives 28v of bias but it also gives .500 mils of idling current. with a second zener in series at 58v it drops down to 100 mils. what am i missing? i have checked the meter against my digital meter. they read the same. Carey, kc5gtt