>At 09.34 1997-12-17 -0800, you wrote:
>
>SM3BDZ:
>>>* As said before, I really do like your sense of humour Rich!
>>>* However, regarding efficiency, the resting Ip in a G2DAF amp is very low
>>>and * much lower than amps in AB1 or AB2 = Higher efficiency for G2DAF!!
>>>
>
>AG6K:
>>The resting current in the Class AB1 amplifiers that I use is 0mA.
>>Within a fraction of a second of not speaking into the microphone, the
>>transceiver's VOX switches to Rx mode, and within 3mS thereafter the
>>amplifier switches to Rx mode. It's almost like talking on the
>>telephone.
>>- The efficiency of the AB1 amplifier is roughly 60%. If the efficiency
>>were an impossible 100%, the S-meter at the receiving end would increase
>>1/3 of one S-unit.
>>- There's an electronic-switched AB1 grid bias supply at:
>
>Since when did you take TRX vox into account when measuring efficiency
>of an RF-amplifier?
It was not Rich who associated the subject of zero resting current with
efficiency. You claimed that the resting current in a G2DAF amplifier is
lower than that in a Class AB1 amplifier. I pointed out that zero
resting current can be obtained by means other than the G2DAF circuit.
cheers
Rich...
R. L. Measures, 805-386-3734, AG6K
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