With one eye on Sunday's Premier League clash against Liverpool, Redknapp made 10 changes to his side, meaning the likes of Jake Livermore, Harry Kane, Tom Carroll and debutant Yago Falque were thrown into the mix amid almost deafening noise from the raucous home support.
"I was pleased with performance, particularly in the first half. We kept the ball well," Redknapp said.
"That was an intimidating atmosphere out there tonight. It was fantastic. You don't get that in many places in the world.
"The fans were incredible and they get behind their team.
"The young players have never seen that before and it must have been a difficult experience for them, but I thought they coped very well."