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Mike SP5IT posted this a few years ago:


https://www.worldwidedx.com/threads/hr2510-pre-driver-question.249814/#post-696272


I have done this to a lot of HR-2510's back in the day (pre 2000).  I used the stock MRF477 final, never changed it to the MRF497, there was no need to.


I have 2 HR-2510's in my storage, I need to dig them out later and most likely recap them, as they have been sitting boxed up since about 2008-9.