** More grid-gnd bypass C is needed with a fusing resistor in order to
protect it from RF on 10m - due to the 5pF anode-grid C. Thus, the
original 3 x 200pF or so caps need to be padded with an additional 1000
or so pF to bring the grand total to over 1500pF.
>All,
>
>What is the recommended grid-gnd circuit?? The original sb-220 had an LC
>network; it seems to be a common recommendation to replace the coil with
>a 33 OHM resister. Are the caps changed as well??
>
>Thanks,
>Dan
>
>R.Measures wrote:
>
>>** Disc ceramics have less less L than silver-micas. Also, the grid-gnd
>>circuit is not part of the tuned input circuit, so the stability of a
>>silver mica is not needed.
>>
>>
>>
>>>Need some Elmering.
>>>
>>>Can anyone explain why the Harbach Suppressor kits use Ceramic Disc instead
>>>of Dipped silver micas for Rf choke replacements?
>>>
>>>
>>>Thanks in Advanced
>>>Chris
>>>_______________________________________________
>>>Amps mailing list
>>>Amps@contesting.com
>>>http://lists.contesting.com/mailman/listinfo/amps
>>>
>>>
>>>
>>_______________________________________________
>>Amps mailing list
>>Amps@contesting.com
>>http://lists.contesting.com/mailman/listinfo/amps
>>
>>
>>
>_______________________________________________
>Amps mailing list
>Amps@contesting.com
>http://lists.contesting.com/mailman/listinfo/amps
>
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|