[Amps] Dummy Load "Oil"

[Carl]

I wonder how synthetic transmission fluid will work? It sure cools down the 
temperature in my vintage drag race car.

Carl
KM1H


----- Original Message ----- 
From: "Per Molund" <pmolund at online.no>
To: "RICHARD SOLOMON" <w1ksz at q.com>; "Amplifier Reflector" 
<amps at contesting.com>
Sent: Wednesday, July 29, 2009 3:12 PM
Subject: Re: [Amps] Dummy Load "Oil"


>I have refilled a couple Bird Tenuline 8329 with Shell Diala DX
> transformer oil which happens to be the same oil my local utility
> company is using in their power transformers. I assume this oil is
> quite similar to Exxon Univolt 61 or Nynas. The use of mineral
> transformer oil will derate the dummy load a bit compared to
> siliccone oil, but I have not had any problems due to this. As far as
> I have seen Bird use mineral oil in most of the smaller dummyloads up
> to about 1 kW (Oil P/N 5-030-3), while the larger ones use DC-200
> Silicon Oil (P/N 5-1070-2). If I my memory serves me right, the old
> Tenuline 8327 (1 kW) and 8329 (2 kW) are the same mechanical units,
> the difference between them are mineral oil vs. silicone oil. I am
> not sure if this is the same with the current -300 models.
>
> I would suggest You stop by a local power utility maintenance shop if
> possible and ask for a few gallon of transformer oil, You may be lucky.
>
> regards,
>
> Per - LA9XKA
>
>
>
> At 17:11 29.07.2009, RICHARD SOLOMON wrote:
>
>>Since the Bird Silicone Oil is a tad pricey ($142/gal), can anyone
>>
>>recommend a substitute for re-filling a Bird Dummy Load ?
>>
>>
>>
>>Thanks, Dick, W1KSZ
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