Broken Rotary switch shaft CTS 137 series

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Joined 2003
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Hi all. After recapping this B & K Pro 10 Mc preamp I was aligning the knobs on the Input and Record controls when the aluminum split shaft rotary switch shaft finally gave up. B & K used dual set screws with these aluminum shafts probably knowing they would be destroyed after awhile.
It a CTS 1379038 2 pole 6 position. About as Hard to find as they come. I posted here hopefully thinking someone has been here before. I sold electronic parts over the counter for 15 years so I can normally find a part if it exists.
I have replaced controls like this doing a hardwired job, but I was hoping to avoid. Yes wishful thinking.
 

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