[TenTec] 238 Question

[Jim FitzSimons]

Jerry, use a 4:1 transformer to lower the impedance. Then you do not 
need such a large inductor.

I have run out of capacity on my 238. I used the extra capacitor
Ten Tec sent with the tuner. The 238 needs more positions on the
variable capacitor. It is not convenient to connect external 
capacitors. There are frequencies that the 238 skips over
the best tuning. 

My LDG Z-11 will tune just about any antenna.
The Z-11 is only good for 30 Watts and the AT-11 will handle 
150 Watts. These L tuners really spoil you. 
Regards, Jim FitzSimons W7ANF

Gerald C Totten wrote:
> 
>   I have found that the 18 micro henry coil in the 238 does not have
> enough L to tune my 130' inverted L with about 45' of down lead on the
> end  (175' total.)  It will tune it if I shorten it but I don't want to
> do that on a permanent basis.  Has anyone changed the roller coil to a 28
> micro henry?  Or have another suggestion?

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