Fig. 5. Transfer circuit.
We are now ready to transfer information when the second line of the program tape is read. This line holds 1110 and designates C5 as the sending register and causes Source 2 to be energized. This fact is shown schematically by the arrow running from the second line of the program tape to Source 2. When the second line is read, current flows:
1. From Source 2.
2. Through the contacts of the C5 register if closed.
3. Through the rectifiers.
4. Through the bus.
5. Through the entrance relay contacts of the O register.
6. Through the coils of the O register relays, energizing such of them as match with the C5 closed contacts; and finally
7. Into the ground.