[R-390] killer and mica caps
Bob Camp
kb8tq at n1k.org
Wed Oct 12 17:56:05 EDT 2016
Hi
I find it absolutely amazing just how robust the transformers in these
radios are. There are other pieces of gear that would have them at the top
of the failure list.
Bob
> On Oct 12, 2016, at 9:03 AM, Tisha Hayes <tisha.hayes at gmail.com> wrote:
>
> Never has so much concern been given over one solitary capacitor, just
> replace it and be done with the discussion. If the same amount of attention
> went in to the thousand or so other components on the radio then this forum
> will go on for the next 500 years.
>
> There are components that are much more problematic, yet we do not even
> discuss them. With the abundance of crystals in the radio it is more
> challenging to find a replacement in the same package size. Another
> challenge is the debate over carbon comp, carbon film or metal film
> resistors in the RF/IF chain and how self inductance changes a tuned
> circuit.
>
> If you lose a transformer then it is all-over, done-for; yet we do not
> discuss how to protect a transformer from overcurrent (B+ fusing) or inrush
> current limiting.
>
> *Ms. Tisha Hayes, AA4HA*
> *"*There are many who live in the mountains and behave as if they were in **the
> town; they are wasting their time.*
> * It is possible to be a solitary in one's mind while living in a crowd;
> and it is possible for those who are **solitary to live in the crowd of
> their own thoughts.*"*
> **-Amma Syncletica of Alexandria**
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