Message-ID: <15c73ca5749.marcocadeddu@tin.it>
Date: Sun, 4 Jun 2017 17:47:39 +0200 (CEST)
From: "marcocadeddu@tin.it" <marcocadeddu@tin.it>
To:  <rsgb_lf_group@blacksheep.org>
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Subject: R: Re: R: Re: LF: Re: I: Fw: For today the FETs survived...
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Status: O

heyheyhey..
now I'm testing with the new coil still at 50Vdc ;-)
ops I was forgetting: without dissipator :-)) just with the mounting 
alu block it runs at room temp, maybe it is worth later at full power!
The 
picture of Andy is not in thema: is the consequence of qro ampli on 
undersize external loading coil :-)
By the way when this ampli will finally run on the antenna I need to re-
size the variometer because it warms already with 250W..

Also the new tank coil with 2,5mm² wire after 1 hour has a bit of 
fever.. but is not warm as the former.

Just a quick question Andy: speaking of the guard circuit, if I read 
Iguard whithout mismatch is correct the assumption that the link has 
too many turns?

Alan: I'm vintage.. and I'm sure I have a variac in the basement :-) 
thanks for the hint ;-)

Thanks all for the psycological and praxi help !!
Marco

----Messaggio originale----
Da: andy.g4jnt@gmail.com
Data: 4-giu-2017 17.49
A: <rsgb_lf_group@blacksheep.org>
Ogg: Re: R: Re: LF: Re: I: Fw: For today the FETs survived...

Something like this ...
http://www.g4jnt.com/QRO_LF_DoesThis.JPG
'jnt :-)


On 4 June 2017 at 16:25, Chris Wilson <dead.fets@gmail.com> wrote:

> Hello Alan,
>
>
> No, what he needs is a video camera, and the courage to post the
> result here for scrutiny, we need a bit of fun now and again ;)
>
> Good luck Marco, what's the worst that can happen.... :)
>
>