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On the TDI Pro the upper handle was a bolt on assembly with separate part numbers The prototype models has a straight shaft, and the production models an S shaft. In either case you could remove the handle via four bolts to hip or chest mount the control box.

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Since the production models went S shaft, there were aftermarket straight shafts. Here is the Anderson aftermarket straight shaft  for the TDI Pro:

https://www.seriousdetecting.com/product/anderson-whites-tdi-metal-detector-black-carbon-fiber-shaft/

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Does anyone have any part numbers for the original TDI upper handle?

The SL models the handle does not normally separate (attaches from inside the control box) and so only White’s or White’s dealers would have access to the part number for the upper straight shaft or S shaft.

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The straight middle shaft 500-0288-1 or S shaft 802-5213 is standard on many whites detectors, and there is a “tall man” version 500-0240-1 of the S shaft.

Does anyone know or have access to part numbers for the handle on the TDI SL, either straight or S shaft?

The TDI Beachunter uses a removable shaft that can probably be retrofitted to the SL models with some drilling.

B9FFB5A7-9197-4437-B106-10A927584246.jpeg
 

This appears to be the White’s Diver Rod Kit, part # 802-5195-1, with straight middle shaft 500-0288-1 added, and may retrofit to the SL with some drilling.

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White’s Diver Rod Kit

One of the best deals going in a rod assembly for years has been the Whites Space Saver Rod Kit for Classics and Early Goldmaster models, part number 802-5236. This may also retrofit the the SL and is in any case a good way to get some Whites Rod parts cheap. While they last.

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White’s Space Saver Rod Kit

If anyone has any information they can add about any TDI model rod or shaft parts, now would be a great time to archive it while it’s still halfway easy to track down.

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I have a 2009 TDI I can look at if you would like something answered.  I am a novice though so I would not know what to look for on my own.

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