I have an opportunity to purchase a DC machine w/o the High Frequency. I also have an opportunity to purchase a separate High Frequency attachment. Since my welding is only hobbist, would I need the High Freq for 'Straight Polarity DC'? The DVD I purchased only showed using the High Freq with AC. I imagine the High Freq makes starting any bead easier. Off subject question...why in the devil are 'foot pedals' so darn expensive? thanks. . charlie
- posted
12 years ago