[ARC5] Collins xfmr ratings
Jim Falls
radio-tuber at att.net
Sun Aug 17 00:59:30 EDT 2014
Thanks to advice and a few key parts from Dennis W7QHO, I got a good bleeder set up to maintain critical inductance es solved an annoying FM problem when I was running my BC-375 in AM phone.
The PSU is a beast (lift with the legs!) but I achieved 8% regulation.
Cheers!
Jim K6FWT
CBLA #37
> On Aug 16, 2014, at 6:57, John Saxon via ARC5 <arc5 at mailman.qth.net> wrote:
>
> Thanks Ken and everyone...
>
> As I previously said, this discussion comes at a very good time for me. Thanks so much for clearing these critical (pun intended) points.
>
> OK...back to the bench,
> 73,
> John
> K5ENQ
>
>
> ________________________________
> From: Kenneth G. Gordon <kgordon2006 at frontier.com>
> To: ARC-5 Mail List <arc5 at mailman.qth.net>
> Sent: Friday, August 15, 2014 3:10 PM
> Subject: Re: [ARC5] Collins xfmr ratings
>
>
> <snip>
>
> Although in point of fact, this statement is correct as it is written, what
> actually happens if the critical inductance is not reached is that the output
> voltage reaches the a.c. voltage's PEAK, not average. Now this doesn't
> happen instantly, meaning that if the choke is close to the critical inductance,
> but still below it, the output voltage will be higher, but not to the peak value
> yet. If the true peak value was reached, that would be 600*1.414=848.4V.
>
> <snip>
>
> Ken W7EKB
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