>Hello Rich:
>
>The question referred to suppressing 100 mHz only. This can be done with a
>stub, a series tuned circuit that loads the parasitic at that frequency,
** loading the parasitic after the fact is not possible. The trick is
to reduce gain at the anode's specific damped-wave ringing frequency.
>or a parallel tuned circuit in series with plate lead.
** A diagram, explanation, and circuit analysis are needed.
>Either than amplifier
>can be made to have no gain at 100 mHz by design or it can be loaded so
>that it has no gain because of the load at that frequency.
>
** A gain of under one will do quite nicely.
>If parasitics only occurred at 100 mHz, parasitic suppressor design would
>be easier. You asked a simplistic question and I responded accordingly.
>
** VHF parasitics seem possible only at a VHF anode resonance, and only
when anode current changes.
>Colin K7FM
>
>
>> [Original Message]
>> From: 2 <2@vc.net>
>> To: <k7fm@teleport.com>
To: <amps@contesting.com>
> > Date: 3/27/03 8:51:18 AM
>> Subject: Re: [Amps] Parasites (parasitics)
>>
>> Attribution marks corrected manually
>>
>> >Rich asked:
>> >
>> >>"** Is it possible to design a VHF suppressor that suppresses 100MHz,
>but
>> >>does not suppress 30MHz ?"
>> >
>> >Response:
>> >
>> >Yes.
>> >
>> ** Please describe the process, Colin. Thank you.
>> >
>> >
>> >
>> >
>> >
>> >_______________________________________________
>> >Amps mailing list
>> >Amps@contesting.com
>> >http://lists.contesting.com/mailman/listinfo/amps
>> >
>>
>>
>> - R. L. Measures, a.k.a. Rich..., 805.386.3734, AG6K,
>> www.vcnet.com/measures.
>> end
>
>
>
>--- COLIN LAMB
>--- k7fm@teleport.com
>--- EarthLink: The #1 provider of the Real Internet.
>
>
>
>
- R. L. Measures, a.k.a. Rich..., 805.386.3734, AG6K,
www.vcnet.com/measures.
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