думал использовать блок питания с компа, все таки 12 вольт, 2A. Не подойдет?
Для проволоки Ф0.4 2А маловато будет.
Она красная при токе, примерно, 4А. Да и регулировать напряжение (а лучше ток) надо в зависимости от рабочей длины проволоки и режима резки.
Использую болгарский (?) лабораторный источник типа ТЭС 15 ( 15В, 10А, режимы стабилизации тока или напряжения).
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