Mark;
I once had a TA-33Jr, with a Classic 33 driven element. Worked fine for
quite a few years, at full limit.
I suspect the TA-33 element should work equally well. A Grid (FET)
Dipper should tell you what the traps
are set for.
Good luck!
ed K0KL
On 4/13/2011 6:54 PM, Marc Tessier - VE3TES wrote:
> I recently bought a real old Mosley TA-33JR triband yagi, I am questioning
> the traps for the driven element, according to the manual it states the traps
> should measure 13 1/2" long, yet the ones I received with this unit measure
> approx 12" in length, and also the traps for the driven element is a fair
> amount larger in dia. for example the traps on the dir and ref are close to
> 1.25" in dia, while the 2 for my driven element measure close to 2" in dia. I
> am suspecting that at one point someone fried the original traps and obtained
> a pair from a TA-33 and inserted these into the mix.
>
> Now for my question, if I can even use these 2 traps, what dimensions should
> I use for the length of the driven element, the ones from the TA33JR or the
> TA33?
>
> Seeing as the color coding has long been washed away from the effects of the
> sun and weather, its impossible to tell for sure just by looking at these
> traps, but I can tell you that by removing the covers from the traps, I was
> able to identify the coil windings accurately match that of the TA33.
>
> Marc Tessier - VE3TES
> ve3tes @ cogeco . ca
>
>
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