P&H welder high freq control

Viejito · Sep 2, 2018

Hi guys.

I restored an ancient p&h Monarc 300 ac welder. Beast works fine. See picture.

Was just given a p&h model h-943 high frequency control box, but I can't find any info on it? See picture.

Can this box be used on an ac stick welder, or just dc tig?

Thanks in advance for any info on application for this unit.

Newman109 · Sep 2, 2018

Viejito said:
Hi guys.

I restored an ancient p&h Monarc 300 ac welder. Beast works fine. See picture.

Was just given a p&h model h-943 high frequency control box, but I can't find any info on it? See picture.

Can this box be used on an ac stick welder, or just dc tig?

Thanks in advance for any info on application for this unit.

High frequency works on AC TIG but not on DC.

I don't know about AC stick working with high frequency. My Miller Syncrowave 200 has h.f. on AC TIG, but not on AC stick.

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P&H welder high freq control

Viejito

Plastic

Newman109

Diamond

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