Oh, heck, I've beaten up a Dentron Super Tuner on 160 with my OMNI VI
and no amp at all. 100 watts into a short vertical - it DID get the
SWR down at the rig but the SWR would "creep up" with heating of the
elements inside. I tried another one, same thing. I suspect many of
the MFJ units would do the same. Their cheaper tuners are "fine" as
long as your antenna is relatively well behaved (I've done fine with
the Diff-T tuner from MFJ even with an amplifier, but never a difficult
antenna!)
Yes, then I went to the 238 and it worked fine. Now, I don't use amps
anymore, and my main tuner is the Harvey-Wells Z match, rated for 400
watts (AM!!!) and just hit it with 5 watts most of the time. No
problems here.
Clark
WA3JPG
On Sep 13, 2007, at 6:55 AM, Paul Gates, KD3JF wrote:
> I also had a Dentron tuner. I think it was called Super Tuner....
> rated for a kilowatt and never had a problem... So what Bob McGraw is
> talking about must not be Dentron or MFJ!! <g>
>
> "Carter, K8VT" <k8vt@ameritech.net> wrote: Bob McGraw - K4TAX wrote:
>
>> I noticed "smoke coming out of the box". I opened it up to discover
>> the tapped inductor and it's plastic structural supports to be stinky
>> gooey brown limp bars. Fortunately the stiffness of the wire held
>> things in reasonable shape. Although the tuner didn't arc or
>> flash-over, as far as a 1.5KW PEP power rating, it isn't. {Name
>> omitted to protect the guilty.}
>
> I hope you have some mighty fine justification to "protect the
> guilty". ;-)
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