[Heathkit] followup Re: Cantenna

[Dick KF4NS]

To those who challanged the R value, I tested it in and out of the oil 
with my Fluke DMM (42.4 ohms) and with my benchtop HP DMM calibrated 3 
mo. ago (42.51 ohms).

Now, here are the MFJ 259B analyzer test results:

80meters = R 42, X 4, SWR 1.2

2 meters = R 48, X 8, SWR 1.1

To those who poo-pood the R value, you are 100% correct. I will leave 
it alone and forget I ever concerned myself over nothing. THANKS. I 
put it back together and forgot about it.

73, Dick KF4NS
St Petersburg, FL 33714 USA
Keep The Glow!


----- Original Message ----- 
From: "Dick KF4NS" <kf4nsradio at verizon.net>
To: "Heath list TEMPE" <HEATH at LISTS.TEMPE.GOV>; 
<heathkit at mailman.qth.net>
Sent: Wednesday, January 13, 2010 6:40 PM
Subject: Cantenna


> My question is regarding the resistor. I still have the original but 
> it now tests at 42ohms. Many years ago after the oil scare, I called 
> a friend at the power company and was given replacement transformer 
> oil of the type they had switched to.
>
> Is it possible that the newer oil has had any effect on the R being 
> lower now. I have never used more than 100W to it and it has been 
> kept in the shack (house) all the time. The oil is kept within 
> 1/2inch of the top.
>
> I will replace the resistor as soon as I can find one that will fit. 
> Also, the lower silver plated clamp is broken so will have to find a 
> substitute. I know that Kanthal Globar has resistors but who else 
> does? I believe that the Globar 886SP rated at 90W would work. It is 
> the exact size of the original. Of course they are not copper or 
> brass like the original but rather aluminum contacts. It is hard to 
> understand their specs.
>
> 73, Dick KF4NS
> St Petersburg, FL 33714 USA
> Keep The Glow!
>
>