[TenTec] Power Supply temperature

[Clayton Brantley]

Brian:  Might want to measure the voltage at the large cap and then deduct the output
voltage from that first measurement.  That will tell you how much is dropped across the
pass transistor.  If you have more than a few volts difference then all that has to be 
dissipated as heat.  It's the old I squared R thing.  

73 Clayton N4EV





On Tuesday, February 18, 2014 8:00 PM, Brian Carling <bcarling at cfl.rr.com> wrote:
 
I will do the same and report results.

Best regards - Bry Carling



> On Feb 18, 2014, at 4:16 PM, Dave Edwards <kd2e at comcast.net> wrote:
> 
> I'll go turn it on now.
> 20 meters, medium volume.
> 
>> On 2/18/14 4:12 PM, Brian Carling wrote:
>> Thank you Dave. I think it does get hot just on receive only. I will try it that way for a while this afternoon. If you could do the same and tell me what you find I would appreciate it.
>> 
>> Best regards - Bry Carling
>> 
>> 
>> 
>>> On Feb 18, 2014, at 3:33 PM, Dave Edwards <kd2e at comcast.net> wrote:
>>> 
>>> What happens on receive only?
>>> I can turn my OMNI VI Plus on, let it sit for a while and see how hot it gets if that will help.
>>> ...Dave
>>> 
>>> 
>>>> On 2/18/14 1:27 PM, Bry Carling wrote:
>>>> I have noticed that the power suply with my OMNI VI Plus seems to get extremely hot, even
>>>> wit hcasual CW operation.
>>>> 
>>>> Has anyone else noticed the same? I can barely touch the fins on th eback.
>>>> 
>>>> Thanks for any insights.
>>>> 
>>>> Bry AF4K
>>>> 
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