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Well, if you look carefully at the OLDER cross references...


1306 = NTE 235

1307 = NTE 236


That's' a Slightly different beast of nature versus the 2166 or the 1969 - even the 2312.


What I thought was cute and need to be wary, Be VERY WARY  of - is in using this type of part, you do not know that the pinout will work


- as in you may need to reorient the leads for some of these parts to meet the purposed hole it belongs in

  • Required? For that to be a drop in replacement - which to me, if it leads have to be reconfigured to meet the pinout - it's not a direct sub nor drop in - it's a replacement - yes, but only in performance alone - if that.

Not exactly a "drop in Replacement" in one sentence - two sentences would help those that are new or just visiting the realm of "Getting this Gosh Darn thing to work again..."