I'm a retired model maker and I've used a Mig in the past but never used a Tig before and I have bought a Draper Tig model: 05573. The welder came with no Tig torch or cable and I've bought one off Ebay. The torch has a valve and a switch but there is no connection on the welder to connect a switch. Can anyone tell me if there is a way to connect the switch to the welder and if not can you tell me if the torch will still work without the switch being connected. Thanks in advance George