Originally Posted by
JohnDThompson
Mine is a TL-UN74. I haven't had any problems with it, but I'm not sure that I've tried it with a UN-26 cartridge. It works with UN-51 and some other third party cartridges I've tried.
Looking at pictures of the TL-UN72, I really don't see much difference from my TL-UN74.
It appears the 72 has thicker walls.(eyeballing your pic vs the 72 in my hand)
My hole measures .79"
EDIT- maybe this pic from the business end may show different thickness?