>
>hello.i am a proud owner of Drake L4B amp.and as i was cleaning it out
>yesterday i was thinking about one thing.the pi tank on 10-15-20 m have
>silver on the coil,how is that affecting the tank ? and that coil is reeealy
>getting hot when i am puting 1.5kw out on 10m (home built PS) where does the
>heat come from and how can i prevent that kinda heat.is it possible to make
>the pi tank coil for those band with larger diameter on the coil ?
Yes. // Heath's SB-220 puts much cooling air on the 10m inductor. //
5A on 10m is like 20A at 60Hz.
>and how
>does the thickness of the silver on the pi tank affect the tank and the temp
>and so on ?
>
Silver offers no improvement over Copper at HF.
cheers
- Rich..., 805.386.3734, www.vcnet.com/measures.
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