[TenTec] Using Non-TT Supply

[Paul Kraemer]

Those are nice circuit breakers but the instant trip magnetic part was only 
activated by major overloads.  The other part was a thermal trip with the 
usual time lag
We used them on conveyor controls we designed and built for use in a GM 
plant
I have a large surplus of 2 pole, 250vac, 20 amp units I have been 
practically giving away for postage.  Work nice for the linear amp power 
supply
Paul K0UYA

--------------------------------------------------
From: "Joel Hallas" <jrhallas at optonline.net>
Sent: Wednesday, August 28, 2013 1:55 PM
To: "'Discussion of Ten-Tec Equipment'" <tentec at contesting.com>
Subject: Re: [TenTec] Using Non-TT Supply

> For those early radios, TT offered an "AirPax" fast acting magnetic 
> circuit
> breaker for mobile users or others who didn't use the TT current limited
> supply. These are available from the usual vendors, although they now seem
> to have become part of Sensata Technologies.
>
> Regards, Joel Hallas, W1ZR
> Westport, CT
>
> -----Original Message-----
> From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of Rick -
> DJ0IP / NJ0IP
> Sent: Wednesday, August 28, 2013 1:26 PM
> To: 'Discussion of Ten-Tec Equipment'
> Subject: Re: [TenTec] Using Non-TT Supply
>
> I have a hunch your assumption is correct, Paul.
> 73
> Rick, DJ0IP
>
> -----Original Message-----
> From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of Paul
> Kraemer
> Sent: Wednesday, August 28, 2013 4:32 PM
> To: 'Discussion of Ten-Tec Equipment'
> Subject: Re: [TenTec] Using Non-TT Supply
>
> If that is an issue then use the VS-35M model with front panel adjustable
> current limit that can be set from 1.5 amp up to max of the supply.  The
> voltage is also adjustable from front panel.
> I haven't taken each apart but I wager  the only difference between the
> VS-35M and the RS-35M is the adjustments brought out to a knob Paul K0UYA
>
>
> --------------------------------------------------
> From: "Rick - DJ0IP / NJ0IP" <Rick at DJ0IP.de>
> Sent: Tuesday, August 27, 2013 11:28 PM
> To: "'Discussion of Ten-Tec Equipment'" <tentec at contesting.com>
> Subject: Re: [TenTec] Using Non-TT Supply
>
>> Paul,
>>
>> The over current protection in your RSM 35 is not the same as the over
>> current protection used in the Ten-Tec power supplies.  The RSM 35's
>> over current protection is to protect the power supply itself.  The
>> Ten-Tec power supplies had their over current protection set to
>> exactly the maximum permissible current for the transceiver's finals,
>> and that helped protect the final transistors.  Ten-Tec used this
>> method for almost 20 years.  I think the Omni VI was the first
>> transceiver which did not rely on the power supply for the extra
>> protection.
>>
>> There is nothing special about the Ten-Tec circuit, other than the
>> point at which it shuts down.  Older models ceased at 18A, later ones
>> at 20A (as the
>> new transceivers required more current).    Any good power supply with an
>> adjustable current parameter would also work like the Ten-Tec power
>> supplies.  However how often do you see someone using a P.S. with an
>> adjustable current limit?
>>
>> Bottom line, your suggestion is only good for the newer transceivers.
>> Don't
>> use it with the older Omni's or Corsairs.
>>
>> 73
>> Rick, DJ0IP
>>
>>
>> -----Original Message-----
>> From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of Paul
>> Kraemer
>> Sent: Tuesday, August 27, 2013 11:46 PM
>> To: tentec at contesting.com
>> Subject: Re: [TenTec] Using Non-TT Supply
>>
>> John
>> I use Astron RSM 35 with all my solid state radios including OMNI VI
>> Very good supply with overvoltage and over current protection Paul
>>
>>
>> --------------------------------------------------
>> From: "John Farler" <k4avx1 at windstream.net>
>> Sent: Tuesday, August 27, 2013 3:21 PM
>> To: <tentec at contesting.com>
>> Subject: [TenTec] Using Non-TT Supply
>>
>>> My supply for the TT Omni V or VI has problems.  When I tune up, even
>>> to a dummy load, the pilots in the radio dim and output is not where
>>> it should be on 40 meters and up.
>>> Current is less than 20 A, but I haven't checked the voltage drop yet.
>>>
>>> My question is can I use a non-TT supply with the Omni VI safely?  I
>>> remember someone on the list saying TT stopped using the original
>>> type of power supply like the one with the old Triton which kicks of
>>> at a certain current, but I can't remember which radio it is that
>>> doesn't depend on the "circuit breaker" type of protection.
>>>
>>> I have several non-TT supplies that will provide the current and more
>>> - is it safe to use them with the Omni V, VI??
>>>
>>> I'm guessing the filters in the power supply have gone bad...actually
>>> it has 3 in parallel.
>>> How can I check for one bad one, or can I?
>>>
>>> Thanks, and I hope my post is not too confusing....
>>>
>>> John, K4AVX
>>> k4avx1 at windstream.net
>>> _______________________________________________
>>> TenTec mailing list
>>> TenTec at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/tentec
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