[TenTec] Using Non-TT Supply

[Richards]

I am new at this... so go easy on me... but I think the issue is more 
than having a general overvoltage protection circuit on the power supply.

Take, for instance, my Omni VII which will completely shut down if it is 
drawing too much voltage, such as when there is an awful SWR mismatch. 
And it will do this even if I use the TenTec 963 power supply.   Why? 
Because this type of overvoltage situation is caused by something other 
than a fault in the power supply, I wonder if that is why TenTec 
provides more draconian protection by way of an additional circuit 
breaker.  I wonder whether the rig may sometimes try to draw more power 
than necessary, and that is when it needs its own protection.

Another example, I saw a Jupiter that drew too much power, and did so 
despite using the same power supply you mention, and in spite of the 
protection circuit in the power supply.   TT fixed that problem with a 
new chip and updated firmware.  Nevertheless, the rig tried to draw more 
than it should have from an otherwise well designed power supply.

Thus, the initial question remains... does one need a special protection 
device, such as the circuit breaker  (or whatever is in the Omni VII) 
along with a generic or other brand power supply - even if that power 
supply has its own overvoltage protection circuit.  And the question may 
be different for the Omni V and the Omni VI, respectively.

Hope this makes sense... my road to Heck is paved with all my good 
intentions.

----------------  K8JHR  -------------------------

On 8/27/2013 5:46 PM, Paul Kraemer wrote:

> I use Astron RSM 35 with all my solid state radios including OMNI VI
> Very good supply with overvoltage and over current protection

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