[Boatanchors] 300 ohm twinlead?
Gary Pewitt
n9zsv at cei.net
Tue May 31 12:06:38 EDT 2005
Forget the 300 ohm twinlead. Use 450 ohm ladder line. It's much
better. And it's not much more expensive.
73 Gary
At 08:31 AM 5/31/2005, StephenTetorka at cs.com wrote:
>Vic's point is my concern.
>My 'dipole' is close to resonance on 80...but I use my 'tune anything'
>antenna tuner to match it to the xmtr.
>But...I only use nominally 100 watts AM or SSB.
>
>Now, I'd like to bring a homebrew linear operational.
>It can put out 450 watts PEP and about 125 AM...into a 50 ohm dummy load.
>
>Its my understanding that the line breakdown will occur from 'arcing' due to
>High Voltage.
>One can hit the books..or use the standard capacitor air gap breakdown data
>which will suffice.
>The twinlead dielectric ( plastic ) will increase the breakdown value.
>
>Just wanted some experiential feedback.
>
>Tnx,
>Steve
>WA2TAK
>_______________________________________________
>Boatanchors mailing list
>Boatanchors at mailman.qth.net
>http://mailman.qth.net/mailman/listinfo/boatanchors
>** List Administrator - Duane Fischer, W8DBF/W9WZE **
>** For Assistance: dfischer at usol.com **
>$$ For vintage radio info, see the HCI web site $$
>http://www.w9wze.org
More information about the Boatanchors
mailing list