one may be able to have the suppressor coaxed into toasting morning toast.
the Ni-Cr ribbon in his
uppressor began to glow like an electrical heater element
-----Original Message-----
From: R L Measures <r@somis.org>
To: ham_amplifiers@yahoogroups.com
Sent: Sat, Aug 29, 2009 1:28 pm
Subject: Re: [ham_amplifiers] KM1H, CARL SAID: Toll_Free puts it in
persepective:
n Aug 29, 2009, at 8:19 AM, 1800 Toll Free wrote:
>
On Sat, 29 Aug 2009 03:34:45 -0700, R L Measures <r@somis.org> wrote:
>
> On Aug 28, 2009, at 8:04 PM, 1800 Toll Free wrote:
>
>>
>>
>> >> Your dancing is slowing down Rich. First you say a 3CX-3000 was
>> >> used when
>> >> the solde melted and in a blink you mention a 3-500Z.
>> >
>> > ••• VHF suppressors that don't get hot at 28MHz are not doing
a very
>> > good job of suppressing VHF.
>>
>> I find that statement bullshit, Rich.
>>
>
> ••• 28MHz is on the verge of being VHF. Please tell us how to
> design a circuit that has little or no attentation at 28MHz - which
> has high attenuation at 30MHz?
I'm not going to be baited into this conversation.
•• Translation: oops
> BUT, suffice to say, I haven't had a parasitic suppressor get
irridescent
on me.
••• Nor have I. "Irridescent" (iridescent) is not the right word
ere Shane since there is no display of lustrous, rainbowlike
olors.20 According to James Day, W6DF, the Ni-Cr ribbon in his
uppressor began to glow like an electrical heater element during an
0 test at 28MHz. This should not be surprising considering that Ni-
r is not a good RF conductor and that there is considerable tank
irculating I that passes back through a G-G 3cx3000A7's C-anode-grid
uring 28MHz operation. However, for 2, 3-500Z low VHF-Q parasitic
uppressors, silver-solder melting at the soldered connections
uring 28MHz A0 operation is about as hot as they get - which is why
i-Cr L-supp leads need to be wrapped 3/4 turn before silver-
oldering them.
I HIGHLY doubt the Dick has, either.
••• whose?
BUT, who says the suppressor has to START it's suppression at 30 mhz?
••• no one. VHF suppressors need to be lossy at VHF, but since they
re basically low-Q devices, they can not be made to suddenly roll
ff like a mechanical IF filter's bandpass.
>>
>> On my monoband amps (which any idiot can create, right?
>>
>
> ••• no
Carcia would beg to differ with you. I've been told this many times in
the past.
••• there are apparently more idiots in the world than you have met
hane.
cheers
Richard L Measures, AG6K, 805.386.3734
@somis.org
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