[Heathkit] Dummy Juice

[k0ewu at juno.com]

On Sun, 03 Apr 2005 20:21:25 -0400 Richard Franzson <franzsrf at umdnj.edu>
writes:
> I have a Heath Cantenna with a gallon of mineral oil. After all 
> these
> years (20) the mineral oil has not given me a problem.    JUST DON'T
DRINK IT!!     JAK
> 
> Tnx,
> Rich KE2VM
> 
> >>> Kim Herron <kherron at voyager.net> 4/3/2005 12:00:28 PM >>>
> Hi George,
> >How much over the dry rating can the load resistors be pushed in 
> oil?
> >If I use a hundred watts worth of resistors in parallel, what are 
> they
> 
> >capable of dissipating in an oil bath?
> 
>       The resistor that Heath used in its dummy is a 100 watt 
> resistor.
>  In 
> the oil bath
> it will dissipate 2KW for 2 minutes.  The older Heath cans had a 
> chart
> on 
> the side to give you those figures.
> I believe that the ARRL had a load in a handbook sometime back that 
> was
> 
> built around 2 watt resistors
> and would handle the same kind of power.  You can get a resistor 
> from 
> Mouser that will do the job without all that
> soldering and fabrication.
> 
> 
> 
> >Anyone, any  other thoughts on compressor oils?
> >I have one that needs oil and was thinking of transmission fluid.
> >I want something that's inexpensive (cheap) and found locally.
> >To buy a gallon of special oil with shipping it might end up 
> cheaper
> to 
> >find another load.
> >Thanks, George KB2Z
> >
> >
> >At 01:29 PM 4/3/05 +0000, you wrote:
> >
> >>Go to your local AutoZone, or what ever you have there, and get a
> gallon 
> >>of compressor oil. Non flammable and cheap. Been using it in my
> cantenna 
> >>now for several years. John
> >>
> >>John Page K4KWM
> >>Hollow State since 1953
> >>(ex W8PKU,N8BLB,NA8O)
> >>
> >>
> >>
> >>>From: "guy driver" <guydriver at msn.com>
> >>>To: Heathkit at mailman.qth.net
> >>>Subject: [Heathkit] Dummy Juice
> >>>Date: Sun, 03 Apr 2005 02:40:37 +0000
> >>>
> >>>Seems as though after nearly thirty years and a couple of moves 
> my
> Dummy 
> >>>Load (Heathkit) has lost some of its juice.  What, pray tell, 
> should
> I 
> >>>fill it back with??
> >>>Thanks again and 73   wr7k   guy
> >>>
> >>>
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> Thanks!!
> 
> Kim Herron  W8ZV
> 1-616-677-3706
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