[TenTec] Omni VI- PBT jumping after warm up.

[Denton]

Yeah...my omni vi does that little shift also...until I pulled the internal 
speaker (I never use those anyway...much prefer an external speaker) and 
installed a computer power supply's fan that runs in series with a second 
fan on the heatsink. No more drift and the omni's internal components stay 
nice and cool.
I placed an air filter on top of the speaker grill to keep dust out of the 
works.
----- Original Message ----- 
From: "Dale Martin" <kg5u at hal-pc.org>
To: "'Discussion of Ten-Tec Equipment'" <tentec at contesting.com>
Sent: Tuesday, March 13, 2007 4:52 PM
Subject: Re: [TenTec] Omni VI- PBT jumping after warm up.


>
>
> I was thinking of doing exactly what Jerry/K0CQ suggested years ago.
>
> That 'sudden pbt shift on warmup'  has been a 'feature' of my Omni VI 
> since
> I bought it new from Ten-Tec years ago.
>
> It appears on the 'To Do' list of fixes I include with the radio whenever 
> it
> goes in for service.
>
> After four or five trips out to TT and back for that radio, TT has yet to
> fix it.
>
> I've given up and just live with it.
>
> 73
> Dale, kg5u
>
>
>
>
>
>> -----Original Message-----
>> From: tentec-bounces at contesting.com
>> [mailto:tentec-bounces at contesting.com] On Behalf Of
>> k8vf_mark at centurytel.net
>> Sent: Tuesday, March 13, 2007 4:12 PM
>> To: tentec at contesting.com
>> Subject: [TenTec] Omni VI- PBT jumping after warm up.
>>
>> All of a sudden My Omni VI(+1) began acting up.
>>
>> When turned on from a cold start, the PBT is way off,  I must
>> turn it about 30 degrees to the Counter CLockwise in ALL MODES.
>> After 5 minutes or so it JUMPS to the "normal" setting
>> (rather it is off again and I must re center the control  to
>> hear as I normally would). It doesn't drift, it SUDDENLY
>> reverts to its proper state.
>>
>> If, for example, you were copying a cw station it would
>> disappear and you would have to re-center the station with
>> the control.  It works fine until turned off and allowed to get cold.
>>
>> Has  anyone seen this one?  I searched and didn't find any in
>> the archives.
>>
>> Since it is in all modes, it should narrow it down some.
>>
>> Thought I would check before I open it up.
>>
>> Thanks, MArk
>>
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>
>
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