[Kenwood] TS-850 Audible Whine

[rbethman]

Clif,

I was going by the markings on the fans.

Mine were by Matshusta.  They were marked @ 1.2A 12VDC.

So using a ball bearing CPU fan, I got them drawing something like 0.6A 
@ 12VDC.

I figure I'll die before they'll need replacing again.

Bob - N0DGN

On 3/13/2013 7:02 PM, Clif Holland wrote:
> You really needed to replace them. The 930/940 fans draw 450-500ma of 
> current each.
>
> Clif Holland KA5IPF
> www.avvid.com
>
>
>
>
> ----- Original Message ----- From: "rbethman" <rbethman at comcast.net>
> To: <kenwood at mailman.qth.net>
> Sent: Wednesday, March 13, 2013 5:46 PM
> Subject: Re: [Kenwood] TS-850 Audible Whine
>
>
>> BTW - I replaced BOTH the fans in my TS-930SAT.
>>
>> Each of them pulled 1.3A @ 12VDC.
>>
>> I obtained the CPU ball bearing fans from old computers that had been 
>> replaced after being in service for 6 to 7 years 24/7.
>>
>> Since I upgraded to a Windows 7 64 bit,, these two older were scrap.
>>
>> Therefore the cost was ZERO!
>>
>> The total current draw of BOTH fans is now LESS than half the 
>> original factory ones.
>>
>> Thereby I now draw a whole lot less on the 12VDC power bus. Makes for 
>> less stress on the power supply.
>>
>> Bob - N0DGN