| Author |
Message |
    
Semo_rebel
Member
Username: Semo_rebel
Post Number: 53
Registered: 2-2004
| | Posted on Wednesday, June 23, 2004 - 8:02 pm: | 
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I have a new paradynamics 1000 watt paint can dummy load, but i dont know what to put in it or how much.
I was told to use transformer oil, but my supplier doesnt carry it. They said I could use veggie oil.
What should i use, or what can i use?
How much should I use to accieve the 1kw capabilities of this load on 11m? |
Tech808
Moderator
Username: Tech808
Post Number: 2743
Registered: 8-2002
| | Posted on Wednesday, June 23, 2004 - 8:45 pm: |
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Semo rebel,
I use Ford Type F Transmission oil in my MFJ-250 VERSALOAD. Very reasonable in price also.
The same thing as your 1000 watt can dummy load.
Hope this helps.
Lon
Tech808 |
Mud_hog
New member
Username: Mud_hog
Post Number: 6
Registered: 5-2004
| | Posted on Wednesday, June 23, 2004 - 11:06 pm: |
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You can also use mineral oil avavilable at any drug store. |
Geekster
Junior Member
Username: Geekster
Post Number: 31
Registered: 6-2004
| | Posted on Thursday, June 24, 2004 - 3:17 pm: |
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Yep and I have even heard of sand.
I always recommended transformer oil for those when I was their tech. Mineral oil as suggested works too. Motor oil, not sure on cooking oil but???
I haven't tried sand but I hear it works.
Just a thought
 |
Dindin
Intermediate Member
Username: Dindin
Post Number: 216
Registered: 2-2004
| | Posted on Thursday, June 24, 2004 - 9:01 pm: |
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the problem with vegie oil if it will go rancid after a period of time.dont think you or anyone in the same house would appriciate it much a year or so down the road,you'll be looking for that dead possum you cant find.one other thing ,if it is built like the Heath Cantenna dont let it tip over,it will leak around the vent and coax attachment and next thing you know you have a half gallon of oil on the floor.dont ask how i know. |
Tech808
Moderator
Username: Tech808
Post Number: 2767
Registered: 8-2002
| | Posted on Thursday, June 24, 2004 - 10:34 pm: |
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The Ford Type F Transmisson fluid is very reasonable in price and works very well.
I finllay got rid on my Old Heathkit CANTANNA after 20 years and got the MFJ.
Yep they sure do make a mess when they get knocked over. Makes Pretty Red stains on the concrete floor too. hehehe |
Bruce
Senior Member
Username: Bruce
Post Number: 1305
Registered: 9-2003
| | Posted on Friday, June 25, 2004 - 2:29 pm: |
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PCB |
Alchemist
New member
Username: Alchemist
Post Number: 1
Registered: 7-2004
| | Posted on Wednesday, July 07, 2004 - 11:05 am: |
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"the problem with vegie oil if it will go rancid after a period of time.dont think you or anyone in the same house would appriciate it much a year or so down the road,you'll be looking for that dead possum you cant find."
How long does this take? I filled mine with a gallon of vegetable oil in 1988, and 16 years later it is right under the bench. I have never noticed any kind of odor from it and I use it all the time.
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Semo_rebel
Member
Username: Semo_rebel
Post Number: 55
Registered: 2-2004
| | Posted on Friday, July 09, 2004 - 1:40 am: |
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OK 808 I like the idea of type f tranny fluid i need to get a case for when i change the tranny in my 72 ranger anyways.
You mentioned a cantanna sounds kinda like what my dad had i think it said cantenna tho. it was black with white letters and some sorta diagram on the side the lid had a box on it with what looked like an RCA jack on one side and an SO239 on the other. his was bout half full.he gave it to a buddy of mine for his cb shop along with a couple eico testers.
I still need to know how much oil do i need to get 1kw at 11 meters?
as far as it spillin no prob i was goin to put a hook on the underside of my work bench and hang it by its handle. My shop is in a 69 airsteam so i like to fasten stuff down for when i move it.
"The one and only"
SeMO Rebel
SeMO Rebel Lectronix |
Tech808
Moderator
Username: Tech808
Post Number: 2897
Registered: 8-2002
| | Posted on Friday, July 09, 2004 - 9:18 am: |
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SeMO,
I filled my MFJ-250 to 3/4" from the top as per the instructions.
It can handle 2KW
Hope this helps.
Lon
Tech808 |
Semo_rebel
Member
Username: Semo_rebel
Post Number: 59
Registered: 2-2004
| | Posted on Saturday, July 10, 2004 - 10:49 pm: |
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well i am glad yours had instructions. i guess paradynamics isnt as nice as the company that makes yours. |
Tech808
Moderator
Username: Tech808
Post Number: 2913
Registered: 8-2002
| | Posted on Saturday, July 10, 2004 - 11:54 pm: |
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Semo rebel,
The nice thing about the MFJ Products is you can get online and find the Owners Manuals for about all of the products on the MFJ Website.
Lon
Tech808 |
Peddler
Intermediate Member
Username: Peddler
Post Number: 103
Registered: 3-2002
| | Posted on Tuesday, July 13, 2004 - 12:36 pm: |
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why would you use Type "F" and not Dexron...Just nosey. |
Peddler
Intermediate Member
Username: Peddler
Post Number: 104
Registered: 3-2002
| | Posted on Wednesday, July 14, 2004 - 12:47 pm: |
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Well ??? |
Tech808
Moderator
Username: Tech808
Post Number: 2951
Registered: 8-2002
| | Posted on Wednesday, July 14, 2004 - 1:16 pm: |
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Sorry but I have no idea.
It was recommended to me several years ago by several Ham friends who have been in radios for about 90 years between them and use dummy loads a lot.
I have used it for several years now with great results.
Not sure why as they both own nothing but GM Products.
However I do know I can run high power into it longer and it does not heat up near as much as when I was using other types of oil.
Lon
Tech808 |
Peddler
Intermediate Member
Username: Peddler
Post Number: 105
Registered: 3-2002
| | Posted on Wednesday, July 14, 2004 - 7:14 pm: |
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Thanks Lon |
Semo_rebel
Member
Username: Semo_rebel
Post Number: 61
Registered: 2-2004
| | Posted on Wednesday, July 14, 2004 - 7:45 pm: |
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is there a website or tech/customer service number for pdc?
All my load come with was its box. |
Teham
Junior Member
Username: Teham
Post Number: 38
Registered: 1-2004
| | Posted on Friday, September 17, 2004 - 2:40 pm: |
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Trans fluid will give off a terrible odor when it gets hot. Go to your electricity supplier and ask for transformer oil. Chances are they have some old transformers you can take it out of. The cost will probably be free. It will take about 3 quarts or 3/4 full. Don't trust the handle to hang it by. Make yourself a basket to fint the can and hang it that way. Still periodically check it for wear. Tony |
Jose22
Member
Username: Jose22
Post Number: 79
Registered: 2-2002
| | Posted on Saturday, September 18, 2004 - 9:56 am: |
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Use mineral oil. Can get from local grocery store. Will handle the heat and react properly with rf energy |
Tech548
Moderator
Username: Tech548
Post Number: 300
Registered: 5-2004
| | Posted on Saturday, September 18, 2004 - 3:53 pm: |
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Lon. I think I'll make my own but I need a little info first.
How many quarts are in a gallon and how many gallons of Ford Type F tranny fluid will your Cantenna hold? And where do I mount the fan??
Also, what end of the can are you suppose to drill the breathing hole into.
Jeff
Tech548 |
Wildrat
Intermediate Member
Username: Wildrat
Post Number: 319
Registered: 12-2003
| | Posted on Thursday, November 17, 2005 - 6:06 pm: |
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How many quarts are in a gallon? 20 quarts in a gallon.
How many gallons can you get in a gallon can? You can get 20 gallons in the 1 gallon can.
Where do you mount the fan? You mount the fan in the window to get a brezze going.
Wildrat
CEF674
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Moonraker
Member
Username: Moonraker
Post Number: 79
Registered: 3-2005
| | Posted on Thursday, November 17, 2005 - 9:36 pm: |
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1 GALLON = 4 QUARTS |
Hollowpoint445
Advanced Member
Username: Hollowpoint445
Post Number: 908
Registered: 6-2004
| | Posted on Friday, November 18, 2005 - 8:16 am: |
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Years ago when I bought my MFJ paint can dummy load it suggested either transformer oil or mineral oil. It specifically said to make sure the oil you used didn't contain PCBs - as Bruce remarked earlier - because when it's heated they are released in the fumes.
I'd be safe and either use transformer oil or mineral oil. Mineral oil is cheap and easy to find. |
