3 knob Tone Bender pinout

[foozertone]

I'm building a 3 knob tone bender using the three germ trans set from small bear. My problem is I can't find data sheets or pinouts for them. One is marked 2SB77 and has a mark for the collector pin. Another has no markings around the side but does sa 5N 1D SX on top of the can (it also has a tab denoting C?) The last one reads 3AX310 and has no tab or mark. Any help would be greatly appreciated.

Jeffrey