Nah mine is just a Direct Current Inverter welder, the price of Alternating Current for Ali welders are normally upwards of £500, if they were cheaper i would have bought one as it would have been nice to fab up an inlet manifold and all the inlet pipes.
I bought a flowmeter for mine but the shitty Machine Mart Clarke Regulator has a funny size thread on it.
I'm gonna purchase a new regulator off ebay that comes with a Y piece and two flow meters so will be handy when i'm purging the manifold.
Got a good tip for purging from one of the diary pipe welders i know, he said its best to get a quite firm sponge and clamp it between 2 large discs of metal (like penny washers) just under the size of pipe you need so the sponge creates a bit of a seal, tap a hole in the middle for a push in fitting and connect it to the argon. You can then push the seal thing down the pipe until your close to where your welding so the volume is less so you save on gas
I'll get some picks up when i make one for the manifold.