Apollo 9 Flight Journal – Day 4 https://www.nasa.gov/history/afj/ap09fj/011_day04.html
Let’s see, AC POWER, ON.
Let’s see, AC POWER, ON.
CONT SEC vlv – AUTO on panel 382 ECS IND sw – SEC on panel 2 SEC COOL LOOP – AC
ON, up. 002:15:07 Schweickart (onboard): ROTATIONAL CONTROL POWER NORMAL, two, AC
Servo Power 2, AC 2/Main B. 087:42:11 Gordon (onboard): 2, AC 2/Main B. 087:42:12
Gibson: Roger. 119:40:26 Gordon: Okay, the Bus Ties are On MTVC Servo Power 1, AC
Rotational Control Power, Normal, both, AC/DC. 088:25:01 Borman (onboard): Normal
on panel 2 illuminates momentarily when any of the fuel cells are connected to DC
Bus 1 and 2 light were on, and AC Bus 1 and 2 Overload were on the Fuel Cell Bus
Okay, TVC SERVO POWER 1, AC 1/MAIN A. 123:20:25 Scott (onboard): AC 1/MAIN A. 123