[Heathkit] HW-32A RF Amp

[Ron Youvan]

On 5/22/19 10:13, Daniel Yoder wrote:

> Hi All,
> I have learned that my transceiver is a Grid driven / Grounded Cathode
> circuit but what class is it?
> A, AB or C and what makes it so?
> 6GE5 Pentodes

   Class A 33% efficiency + minimal distortion
   Class B (requires dual devices (tubes or transistors)
           75% efficiency + minimal distortion
           (biased for correct idling current)
   Class AB (one or more devices)
           50-60% efficiency + the more power you get,
           the more distortion
   Class C 85 to 98% efficiency + all distortion
           suitable for CW and FM signals only

   The class of service is determined by the bias which controls the
idling current.
-- 
   Ron  KA4INM - Understanding is much better than
                                       knowing how.