Do I need a 205T ACDC?

admin

I have a possible option to buy a good used PT 185, been using the machiene and know it's in very good shape and runs well. For a few hundred more and tax I could get a new PT 225. But I don't weld much thick stuff so not sure the extra amps are justified?Also thought has crossed my mind of the 205T ACDC to get a bit better square wave, but I don't know if there extra money involved is going to let me do anything I can't do with the Precision TIG. Any thoughts?Mostly I am doing thin sheet 22 gauge or thiner, Also some aluminium and stanless.
Reply:Look closely at the specs for both.  Duty cycle and amp draw, not just output.  I have a TA-185 and love it.  Its big enough for most anything I do.  Are the PT-185 and 225 both inverters?DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:Precision Tig 185 is not an inverter, Sounds like 225 used some inverter technology in the power supply, but does not offer high frequency square wave, just pulser and balance.
Reply:I walked into the LWS for a V205T, and walked out with a TA Arcmaster 185.  I love the machine, look at some of the projects I have done with it.  I use it almost daily.DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:Hi Timber wolfI guess you have to weigh the options, the 205 is way more portable, but will it ever be moved? I don't know if the "auto balance" on PT works well or not, the 205 does have alot more superior pulse settings and AC waveform control, not that i ever use it i don't think you can beat squarewave... However i guess you have read my post about the issues i have with mine, try a 205 down low on DCEN 20 gauge and see what the tungsten looks like.You may find the initial start is a little hot, i do alot of 18/20gauge SS where the 205 simply wont perform as well as my miller gold seal.Maybe the PT's do run better on DC because they are still transformer based? i dont know i havn't tried one.Anyway food for thought...
Reply:Transformer based squarewave isn't as 'square' as squarewave from a 'true' inverter . Inverters give a few more options with regards to arc shaping (AC frequency/ high frequency pulse) too but they're not necessary, simply make some jobs a little easier/faster. Portability and the fact that they're less fussy about input power is where inverters really shine.A competent weldor using ancient, basic kit will always outperform a poor welder using the lastest bells and whistles plant
Reply:Thanks guys, I was suspecting that the PT would do all need. So far It has been fine on everything down to 26 ga stainless, even with my so-so welding skils. Portability is pretty much a non issue for me, 99% of my welding comes to me, most times don't even need to move the welder. If I go with the PT will just mount my lincoln mig on top and really it will take up no more shop space. Just need to add another 220 plug, both the tig and my mig take the same plug also my mill as well. Gettting real tired of plugging and unplugging things.