I have a 1961 Airco Heliwelder. 4A/DDR 224/HPA/B-D. High frequency works ok for DC TIG, but stops working after a few seconds on AC continuous. Hoping somebody can start me off in the right direction here. I have the operating and maintenance manual for it.
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Thread: Airco High frequency issues
01-11-2014, 01:37 PM #1
Airco High frequency issues