I believe you are saying that the SWR meter in your radio reads really high to
the sir meter in the Titan. :1 is like WAY high and your transceiver should be
in power holdback with this high of an SWR reading.
If the input matching network low pass filter on this amp is not operating
correctly, you will get the result you see.
This would occur if the link between the output coil switching section of the
bandswitch were not in sync with the input low pass filter selector wafer,
located underneath the tubes.
If the set screw on the coupling is totally loose, you might find that the amp
works perfectly one one band and poorly on all others. However, if the switch
is between positions, or if the coupling smoky has lots of lash due to
looseness, you might not find any position that works properly.
The transceiver should see an SR pretty close to 1:1 when driving this
amplifier.
I do not personally use transceiver auto tuners when driving a linear. The
linear’s own input tuning is all you should need.
The only exception would be if you are driving an old linear that has no input
tuning.
Gary
W0DVN
> On Mar 17, 2019, at 10:21 AM, Paul Ceglia via TenTec <tentec@contesting.com>
> wrote:
>
> i do not have the internal tuner option does that matter..?
>
>
> -----Original Message-----
> From: Rick <Rick@dj0ip.de>
> To: 'Discussion of Ten-Tec Equipment' <tentec@contesting.com>
> Sent: Sun, Mar 17, 2019 11:17 am
> Subject: Re: [TenTec] Titan Repair
>
> If the built-in ATU is "On", the radio will show different SWR than the
> external SWR meter.
>
> 73,
> Rick, DJ0IP
> (Nr. Frankfurt, Germany)
> May the Sunspots be with us!
>
> -----Original Message-----
> From: TenTec <tentec-bounces@contesting.com> On Behalf Of Paul Ceglia via
> TenTec
> Sent: 17 March 2019 16:10
> To: tentec@contesting.com
> Cc: Paul Ceglia <cegtv1@aol.com>
> Subject: Re: [TenTec] Titan Repair
>
> i have a question for the group, i have a TT omni VII that was serviced by
> tt over a year or so.i have noticed the swr in the radio show very high swr
> ,but my anylizer show low ,also on external meter .i tried a few
> things.reoson for this is i have a centaur 411 and can only get 400 watta out
> of so started looking at things .also if some knows who can work on this amp
> i would like to have it gone over and maybe updated,thanks paul N3TMX here
> is my cell if someone wants to chat about my issues .i sometimes better
> understand.talking on the phone
>
>
> -----Original Message-----
> From: Bernie Skoch via TenTec <tentec@contesting.com>
> To: tentec <tentec@contesting.com>
> Cc: Bernie Skoch <k5xs@aol.com>
> Sent: Sun, Mar 17, 2019 10:59 am
> Subject: Re: [TenTec] Titan Repair
>
> Thanks, Jack!
>
>
> -----Original Message-----
> From: w4tjegrunt <w4tjegrunt@gmail.com>
> To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
> Sent: Sun, Mar 17, 2019 9:19 am
> Subject: Re: [TenTec] Titan Repair
>
> Look up triad electronic supply in Winston Salem. I don’t see a web page
> anymore, but on google, there’s still a telephone number. You want to talk to
> Mike, N4VE.
> He has a tech (Keith) who did repair work on my Titan 3 several times, and
> always fixed it lickety-split.
> I had a blown fuse issue with mine several yrs, ago. What worked for me was
> ordering a 220 surge protector and inserting that between the 220 outlet and
> the amp. Mine is an ICE model number 338.
> 73 es GL de Jack W4TJE
>
> Sent from Mail for Windows 10
>
> From: Bernie Skoch via TenTec
> Sent: Sunday, March 17, 2019 10:07 AM
> To: tentec@contesting.com
> Cc: Bernie Skoch
> Subject: [TenTec] Titan Repair
>
> Does anyone know anyone who repairs Titan amps?
>
> I’ve got a Titan III that suddenly started blowing fuses.
>
> I tried what little diagnostics I could (checked transformer resistance,
> separated sections, checked diode stack) with no joy. I sent it to a generic
> amateur radio repair tech who came highly recommended on discussion forums
> (not this one). He had it several months, said he sent the tubes and
> transformer for testing, rebuilt part of the power supply, and finally gave
> up.
>
> Any tips for a Titan repair source appreciated.
>
> 73,
> Bernie
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