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Author Topic: B&W COILS..ID?  (Read 2953 times)
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ve6pg
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« on: October 23, 2005, 06:00:35 PM »

HI FROM TIM..'PICKED UP A BOX OF "STUFF" AT A HAMFEST LAST WEEK..INSIDE WERE 2 PLUG IN COILS..B&W, MARKED" 80 TVL",AND "20 TVL"..THE 20 TVL IS LARGER,AND SOMEONE HAS ADDED TURNS BETWEEN THE 2 COILS...ANY IDEAS WHAT THESE ARE FOR?..TNX...SK...
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...Yes, my name is Tim Smith...sk..
W3NP
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« Reply #1 on: October 24, 2005, 01:24:16 PM »

They are push-pull plate tank coils of the 300-500 watt power class. Usually there is a swinging link that '"swings" in and out between the two coil halves to couple to the antenna circuit.

I use them in my homebrew PP triode rig with either 812H's or V70D's - my avatar shows the 80 meter coil...do they look like that?
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---Dave  W3NP
ve6pg
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« Reply #2 on: October 24, 2005, 02:00:48 PM »

..dave..ya,this is how they look..one has had the" gap" filled with extra turns...thought i would grab that box,with all the stuff,as i dont think it is a good idea fer this stuff to find it's way into a landfill...tim...sk..
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...Yes, my name is Tim Smith...sk..
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