Hello all,
The IK7WPG modification seems very interesting to me, because I possede a
FL2277 B.
This way it is easier to modify. Just the tank wafer to change......But
still have the question about the possibility to introduce a broadband
input circuit.
Who is going to translate the italien text into English or French ( Dutch
would even be better HI HI )
Thanks by 4hand.
Jos on4kj
-------------------------------------------------
----- Original Message -----
From: "2" <2@vc.net>
To: "Osten B Magnusson" <sm5dqc@algonet.se>; " AMPS" <amps@contesting.com>
Sent: Sunday, May 04, 2003 10:25 PM
Subject: Re: [Amps] WTB 572B Cetron
>
>
> >
> >
> >Hi again Rich!
> >
> >IK7WPG has made the FL2100Z a FL2100GI
> >
> >It's all in Italian, but if you don't understand that - you can
understand
> >the circuit diagram and the pictures, the correct way to go is:
> >
> >www.qsl.net/ik7wpg/home.htm
> >
> >Next: click on ''Homebrew'' at the left
> >
> ** I found it. Thanks.
>
> >Next: Come ottenere pi? potenza da un vecchio YAESU FL-2100Z
> >
> >Below that is another construction with a Russian tube, but the idea
> >of converting the FL2100Z out of 572B's seems good, however there
> >is no input tuning, he says the tubes are 100 Ohms, which means
> >two tubes = 50 ohms. I don't think my old TenTec Corsair II will have
> >anything against that...
> >
> ** 50-ohms is the approximate average input R. This means that the
> input R varies from c. 18-ohms to well over 100k-ohms during the driving
> cycle. Thus, a tuned input with a Q of 2 - 3 is needed as a flywheel.
>
> >Sorry if I mislead you Rich, hope this will help you, that means me, hi -
> >to find the article and give me an opinion.
> >
> have phun, Osten
> >> >
> >> >Hello Rich!
> >> >
> >> >I have used Taylor, not better than Svetlana. The only good ones are
> >> >original Cetron 572B's, but I will change to GI7B's instead. I once
> >> >used your VHF-parasistics modification in a SB-200 and it was just
> >> >great, I do believe in the idea!! So did also my old friend SM6CST,
> >> >Urb, now a silent key since Christmas 2001. He got his SB-220
> >> >absolutely stable with your modification.
> >> >
> >> >But it's more difficult in the Yaesu amplifier, no space in the small
> >> >tube compartement...
> >> >
> >> ** True, but it is still do-able.
> >>
> >> >Please have a look at this and tell me what you think, thanks in
> >> >advance! www.qsl.net/ik7wpg
> >> >
> >> ** I think I saw some antennas, some radios and an operator. The word
> >> 'homebuilt' was not found.
> >>
> >> >You have to click to ''homebuilt'' and on.
> >> ... .... ....
> >>
> >> - R. L. Measures, a.k.a. Rich..., 805.386.3734, AG6K,
> >> www.vcnet.com/measures.
> >> end
> >>
> >>
> >
>
>
> - R. L. Measures, a.k.a. Rich..., 805.386.3734, AG6K,
> www.vcnet.com/measures.
> end
>
>
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