At 21.52 1997-12-17 -0800, you wrote:
>>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...
>
Besides efficiency this is true, but with G2DAF its a freebee....
/Lars
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