This design goes all the way back to the PM-1. While some might not think it
was very “solid”, it is one of the few dial cord mechanisms that is easy to
repair when it breaks.
Anyone who has tried to replace a dial cord in a Zenith Transoceanic (solid
state) knows what I mean.
I don’t think that the pulley is very critical. A hardware store or hobby shop
should have a supply from which you could select one that is close.
Likely that also have the elastic, as would a sewing center.
Can you send a photo of exactly what broke?
Send it directly tome off list at dukeshifi@comcast.net.
Gary
> On Nov 11, 2016, at 8:03 AM, Jim Roller <n4ir@charter.net> wrote:
>
> Hoping for a 1 in a million chance someone has a junker somewhere that can
> help:
>
> TT 238 Antenna Tuner; new in 1990; has slide rule type dial using string and
> elastic to drive.
>
> The red indicator for the dial has a connection for the string and also a
> pulley to string the mechanism. I ran the inductor to full stop and the
> pulley broke broke off the indicator and cracked the body. Just hoping
> someone might have one of these available. I'm sure it is a common part used
> in other earlier TT gear.
>
> I have emailed TenTec but don't really expect them to have this in stock.
> BTW, tuner still works great but you have to spin the knob and watch the SWR
> when making a change, hi.
>
> Jim Roller, N4IR n4ir@charter.net
>
>
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