 the GAL-Checker function of GALer. If
this all works then there are no faults in the hardware. GALs of the type
GAL16V8 must be inserted in the Textool-socket, so that pin 1 of the GAL
lines up with pin 3 of the socket. With GALs of the type GAL20V8 pin 1 of
the GAL must line up with pin 1 of the socket.


Here is the pin layout of the used transistors (bottom view):


                       BC 237 and BC 327
                               _
                             -   -
                            - 