Lionel O22 Switch Repair

I have six Lionel O Gauge 022 switches. They were produced from 1945 until 1966, so it's not surprising that three did not work. Specifically, the auto-switch / non-derailing feature was working in only one direction. The switch automatically flipped if a train approached from the 'straight' side and the switch was set to receive a train coming from the curve, but the switch did not flip automatically if a train approached from the 'curve' while the switch was set to straight.

Fortunately, the repair was easy. In all three cases, a solder joint failed as illustrated below. Simply re-soldering the switch brought it back to working condition.