Hi Bob!
Thanks for the info...especially the part #'s on the roller inductor and
caps.
Tom
----- Original Message -----
From: "Robert & Linda McGraw K4TAX" <RMcGraw@Blomand.Net>
To: "Tom Althoff" <althoff@verizon.net>; <tentec@contesting.com>
Sent: Friday, October 03, 2003 12:15 PM
Subject: Re: [TenTec] Balanced Tuners revisited
> The stepped inductors are tapped iron core devices and are used in the 254
> series of 200 watt rated tuners. The tapped inductor is wound on a 2" dia
> powdered iron core and has 47 taps. The part number is 80402. Inductance
> is selectable from 0.1 uH to 20 uH.
>
> The roller inductor is used in the 238 tuner rated at 2 KW. The inductor
> part number is 81040. The inductance is variable fro 0.1 uH to 19 uH.
>
> Also available is the high power variable capacitor part number 80858-1.
> The rating is 40 pF to 500 pF with a voltage rating of 3.5 KV.
>
> I suggest that you contact Tentec direct for current price and
availability
> on these items.
>
> Hope this helps.
>
> 73
> Bob, K4TAX
>
>
> ----- Original Message -----
> From: "Tom Althoff" <althoff@verizon.net>
> To: <tentec@contesting.com>
> Sent: Friday, October 03, 2003 8:35 AM
> Subject: Re: [TenTec] Balanced Tuners revisited
>
>
> > Can someone describe the TT inductors? Where are they used? The term
> > "stepped" inductors intrigued me. Not sure what these beasts might be.
> Are
> > we talking tapped torroids?
> >
> > Are they available as standalone replacement parts? Price?
> >
> > Thanks!
> >
> > Tom K2TA
> >
> > ----- Original Message -----
> > From: "Al Scanandoah" <k2zn@rochester.rr.com>
> > To: <tentec@contesting.com>
> > Sent: Friday, October 03, 2003 7:50 AM
> > Subject: Re: [TenTec] Balanced Tuners revisited
> >
> >
> > > Last year, I built up such a beast with a single inductor, based upon
a
> > > Zack Lau project in the 1990 ARRL Handbook. Not a true balanced
design,
> > > but the current balun on the 50 ohm side helps smooth things out.
> > >
> > > It works OK, but nowhere near as well as my dual roller inductor
> > > network.
> > >
> > > I'm sure performance could be improved by using a pair of the TT
> > > inductors driven in tandem.
> > >
> > > Al, K2ZN
> > >
> > > Tom North wrote:
> > > > Recently there was a bit of discussion on balanced tuners, a la
AG6K,
> > and
> > > > the question came up about the use of Ten-Tec's small stepped
> inductors.
> > Has
> > > > anyone tried this? Any comments?
> > > > 73,
> > > > Tom N5OZQ
> > > >
> > > >
> > > > _______________________________________________
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> > > >
> > >
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> >
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> >
>
>
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