tachometer toyota bj71/74.....

[jerick]

Hi every body!
and thanks a lot in advance
is there someone who could tell me on this tachometer what connection terminal is for the indication turbo and what is for the Tachometer:
P
+B
GND
CHG
B
A

 

[jerick]

I forget to say, it is a tachometer from a toyota bj