| 摘要 |
An electric welding apparatus designed for light arc welding work and specifically made of small size and lightweight for one man portability. To accomplish these functions, the welder uses a circuitry which converts standard 117 volt AC line power to low voltage DC current and uses a control circuit incorporating a triac as a phase control on the primary side of the transformer. The apparatus is enclosed in a casing for easy transportation by one person and employs a novel spacing of elements therein for cooling by forced air circulation.
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