On Sun, 15 Mar 98 16:06:04 -0800 Rich Measures <measures@vc.net> writes:
>>
>>On Sun, 15 Mar 98 12:35:50 -0800 Rich Measures <measures@vc.net>
>writes:
>>
>>>- Eimac publishes no maximum grid-current rating for high Mu
>triodes,
>>>nor recommends specific grid currents.
>>
>>OH???
>>The 3CX800A7 Eimac sheet recommends as "typical" 36ma CW and 16ma
>two
>>tone grid currents at an Ep of 2200VDC.
>>Similar recommendations exist for numerous triodes; 3-500Z, 3-1000Z,
>etc.
>>
>"Typical" means neither "maximum" nor "recommended", except possibly
>within the Conyers city limits.
Maybe not out in the land of fruits and nuts Rich. I consider typical and
recommended to be synonomous.
>
>>Maximum currents are not specified in the sheets but I have a copy of
>an
>>Eimac letter to Amp Supply stating that 50ma is the absolute limit
>for
>>the 3CX800A7.
>
>50mA is not even close to the rated 5w max. grid dissipation, Carl.
Except the max according to the great god Eimac is 4W. Anyway I suspect
they may have had a reason considering the ability of some hams when it
comes to tuning. Something about a little caution saves dollars in
warranties?
>How
>about e-mailing me the JPEG image of this Eimac letter?
Via Juno...no can do.
Ciao until tmw....Carl KM1H
>
>BTW, I need some kaput 3cx800A7s to autopsy. If anyone has any, I
>will
>pay the cost of mailing as well any semi-reasonable gratuity.
>thanks
>
>cheers
>Rich...
>
>R. L. Measures, 805-386-3734, AG6K
>
>
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