This part is a kind of semiconductor called AK2.

Function of this product has Oktode.

Manufacturers : Philips

Image and pinout :

Some of the text within the PDF file :

page 1 2 3 4 5 6 7 8 9 AK2 sheet 14 15 16 17 18 19 20 21 FP date 1935 1935 1935 1935 1935 1935 1935 1935 2000.01.30 [ ... ]

AK2 PDF Datasheet Download