[AMPS] Clipperton L on 10 Meters

[Radiodan W7RF]

Tom,

What is the advatage of a long input RF cable? I suppose it's OK to make a
loop with any excess.
What is "long" relative to band used?

73, Dan Magro W7RF, (President WARC 1999, member SCDXC, SCCC)
Manufacturers Rep & Distributor for HENRY RF Power Amplifiers.
www.radiodan.com <http://www.radiodan.com>     RFpower@radiodan.com
<mailto:RFpower@radiodan.com> A trip to our web site is worth the click!




> -----Original Message-----
> From: owner-amps@contesting.com [mailto:owner-amps@contesting.com]On
> Behalf Of Tom Rauch
> Sent: Monday, August 02, 1999 10:05 AM
> To: amps@contesting.com; Steve Iezzi
> Subject: Re: [AMPS] Clipperton L on 10 Meters
>
>
>
> Hi Steve,
>
> > Has anyone had any success operating the Clipperton L on 10 meters.
> > There's a switch position for the band but the amp tends to run
> away when
> > I tune it up.
>
> That's a common problem with tube having high feedthrough
> capacitance.
>
> The amp isn't neutralized, and feedback can exceed loss under
> some tuning conditions.
>
> The best cure for that problem is to neutralize the amp. If you don't
> want to do that, make sure you have a LONG input cable and
> always run the loading control up towards  the open position.
>
>
> 73, Tom W8JI
> w8ji@contesting.com
>
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>


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