[TenTec] Titan Repair

[Rick at dj0ip.de]

Gary,

 

Sorry, we managed to get two different threads going under a single subject line.

*	Bernie started the original thread.
*	Paul is the OM with the SWR problem.

I have moved Paul's problem to a new thread:  “OM7 SWR Discrepancy (Paul)”

 

73,

Rick, DJ0IP

(Moderator)

May the Sunspots be with us!

 

-----Original Message-----
From: TenTec <tentec-bounces at contesting.com> On Behalf Of MadScientist
Sent: 17 March 2019 17:41
To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
Subject: Re: [TenTec] Titan Repair

 

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 < <mailto:tentec at contesting.com> tentec at contesting.com> wrote:

> 

> i do not have the internal tuner option does that matter..?

> 

> 

> -----Original Message-----

> From: Rick < <mailto:Rick at dj0ip.de> Rick at dj0ip.de>

> To: 'Discussion of Ten-Tec Equipment' < <mailto:tentec at contesting.com> tentec at 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 < <mailto:tentec-bounces at contesting.com> tentec-bounces at contesting.com> On Behalf Of Paul Ceglia via TenTec

> Sent: 17 March 2019 16:10

> To:  <mailto:tentec at contesting.com> tentec at contesting.com

> Cc: Paul Ceglia < <mailto:cegtv1 at aol.com> cegtv1 at 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 < <mailto:tentec at contesting.com> tentec at contesting.com>

> To: tentec < <mailto:tentec at contesting.com> tentec at contesting.com>

> Cc: Bernie Skoch < <mailto:k5xs at aol.com> k5xs at aol.com>

> Sent: Sun, Mar 17, 2019 10:59 am

> Subject: Re: [TenTec] Titan Repair

> 

> Thanks, Jack!

> 

> 

> -----Original Message-----

> From: w4tjegrunt < <mailto:w4tjegrunt at gmail.com> w4tjegrunt at gmail.com>

> To: Discussion of Ten-Tec Equipment < <mailto:tentec at contesting.com> tentec at 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:  <mailto:tentec at contesting.com> tentec at 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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