I had two personal replies, from K6DGW and GM4ESD, thanks guys. I think the
crux is that these are air cored coils, so the coupling between turns and
therefore the detrimental effect is lower. Unlike the case of say a mains
transformer, where the core ensures tight coupling, so a shorted turn is
much more significant.
Please excuse the BW but I hope this is of interest. 73 Fraser G4BJM
From: "Fraser Robertson" <[EMAIL PROTECTED]>
To: [email protected]
Subject: [Elecraft] OT question - shorted inductor turns
Date: Sat, 15 Sep 2007 12:28:45 +0000
Apologies for this completely OT question, but I know I'll get some good
answers on here, plus it will make a change from 'where's my K3?'
Someone has just asked me this, and I confess its something thats puzzled
me before:
In HF ATUs, and high power linears for that matter, it is common practice
to short out the unwanted turns of an inductor, e.g. in a tapped/switched
coil. Why does that not have a significant effect on the Q of the coil. I
know it would have a detrimental effect in a transformer, so whats the
difference?
Id be grateful for any comments/pointers.
Thanks / 73 Fraser G4BJM (K2/100 etc.)
_________________________________________________________________
Got a favourite clothes shop, bar or restaurant? Share your local knowledge
http://www.backofmyhand.com
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
