The N8T97B I found at Wholesale Electronics, Inc. crossing to a NTE6887 Didn't see it at JameCo or DigiKey. FWIW I've attached a Jameco cart as jamecoImsaiFpList.csv
Found an N version of the N8T97B at eBay as item 221611311781On a suffix a letter further in the alpha sequence is generally a faster part correct?