[TowerTalk] Oil For Dummy Load

[Roger (K8RI) on TT]

That transformer fluid is basically, plain old 200 fluid. It may, or may 
not contain additives.  IOW, it's good stuff.

You can probably get it in 5 gallon lots. Get a group buy?  OTOH how 
many hams are willing to pay $50 a gallon?

73

Roger.  (K8RI)


n 11/29/2015 9:53 PM, Martin A Flynn wrote:
> The C84025-1 Coaxial Dynamics load (2.5 kW CCS) at our club station 
> uses Dow-Corning Xiameter PMX-200 silicon fluid.
>
> A gallon was less then $50.00.    We would have went with Diala ZX-4 
> transformer oil, but could not find reliable information if the 
> residual silicon fluid  would safely mix with the Daila.
>
> In either case, the right part is fairly inexpensive - why  use a 
> substitute?
>
> 73 Martin Flynn
> W2RWJ
>
>
> On 11/29/2015 9:02 PM, Bryan Swadener via TowerTalk wrote:
>> No, especially when you're pumping a kilowatt into a 90W-rated Globar 
>> in only a gallon of media that has only the tin bucket itself to 
>> transfer the heat to atmosphere. You need _every bit of advantage_ 
>> you can get.  As it is, those DLs are rated a kilowatt for only a few 
>> seconds. That's why I stopped using my HN31 with an amplifier, and 
>> built my compact 1500W (100% D/C) load.
>>
>> Bryan WA7PRC
>>
>>
>> From: D. Scott MacKenzie
>> To: Bryan WA7PRC
>> Sent: Sunday, November 29, 2015 5:42 PM
>> Subject: RE: [TowerTalk] Oil For Dummy Load
>>
>> Mineral oil is a proper substitute - and not "dubious."
>>
>>
>> -----Original Message-----
>> From: Bryan WA7PRC
>>
>> Sent: Sunday, November 29, 2015 8:27 PM
>> To: towertalk at contesting.com
>> Subject: Re: [TowerTalk] Oil For Dummy Load
>>
>> I found one gallon of actual transformer oil for FREE (unless you 
>> count having to drive 2 miles to get it).Why mess around with dubious 
>> substitutes when it's available for FREE?
>> Bryan WA7PRC
>>
>>
>
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-- 

73

Roger (K8RI)


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