[Kenwood] Tuner problems on my 940

Fri, 11 Jan 2002 06:09:27 -0800

I have a pair of Tucker HFT-1500 tuners with roller inductors I use with a
Windom, so they get used a lot. I like these tuners, but every 6 months a
small maintenance ritual must be performed:  Spray some DeOxit on a small
wad of soft cotton cloth, press the cloth gently on the coil surface, and
crank the coil end to end (moving the rag along with the coil as if it was a
roller), being sure to cover the entire coil. You'll be amazed at the crud
the rag picks up. Then it's good to go for about another 6 months or so.
I'll know when it's time to do it again, fine tuning with the inductor will
start getting flakey!
73, Jerry W5KP

----- Original Message -----
From: "Marc Bruvry" <[email protected]>
To: "Kenwood Refelector" <[email protected]>
Sent: Thursday, January 10, 2002 9:45 PM
Subject: [Kenwood] Tuner problems on my 940

> Hello Group,
> I just acquired an MFJ 259B and am astounded by the poor SWR on my
> antennas (Cushcraft R5000 Vert, A3S Tri Bander (not too bad) and  Home
> Brew Dipole). In trying to tune them thru the MFJ 962D tuner there seems
>
> to be a "jittery" response. Like the coil arm has a rough surface.
> (capacitance is liquid smooth of course) There is no visible appearance
> of anything wrong and I'm wondering if there is any spray or paste that
> might help the contact (like WD-40 or the anti-corrosion paste used on
> antennas during assemblage.) I don't want
> to put something on and find out that it was "a real bad idea"!
> 73, Marc / KF6VNT
>
>
>
> - - -
>
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