C Connectors. This shows the similarity between 50Ω and 75Ω C connectors. The red ones are 75Ω (only coloured because part of a kit of Inter Series Adaptors. It can be seen that the inner pin of the 50Ω plug is bigger than the 75Ω plug which causes damage if incorrectly used.
—Preceding unsigned comment added by Jmb (talk • contribs) 10:57, June 16, 2007
