Download the 2N307A datasheet PDF.
This datasheet also includes the 2N307 variant, as both parts are published together in a single manufacturer document.
2N242 (GERMANIUM) 2N307, A
CASE1~ PNP germanium power transistors for general pur-
(TO_3lI1~ pose power amplifier and switching applications_ MAXIMUM RATINGS Rating
Collector - Base Voltage.