I recently received from Ten-Tec a new dial cord and elastic stretch
cord for my 238 tuner. An instruction sheet came with the parts, which
differs somewhat from the DIAL-STRING ROUTING DIAGRAM in the manual for
The most significant difference is that the new instructions show a
"single pulley" at the upper right hand corner stand-off. This is a
great idea. I am sure the elastic cord will work much better running
around a pulley versus just being dragged around the stand-off.
The problem is that my 238 has not had one of these pulleys as long as I
have owned it, and the manual does not indicate that it was original
equipment. Ten-Tec did not send me a pulley. I did not ask for one when
I placed the order, since I didn't know there was such a pulley. It
seems like there ought to be one on the lower right stand-off too.
There are a few other differences on the instruction sheet. It shows
"brass stand-off" in a couple of places where it looks like aluminum on
my 238. The elastic cord gets tied to the SWR SET potentiometer shaft
instead of to the lower left hand standoff.
I wonder how many versions of the dial cord string routing there have
been over the years? I know they have abandoned that method altogether
in the newer tuners. And some people have made their own modifications
using a spring instead of the elastic cord.
I guess my 238 will not be back in service until another care package
comes from Ten-Tec.
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