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that of the standard and ubiquitous a* variety. the a* varieties were incarnated due to commercial needs such that they were "better, cheaper, lighter" at the expense of embodying more distortion. with the advent of feedback, tube amplifiers could be mass produced with these less expensive a* style tubes...
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stainless steel pipes stainless steel tubes alloy steel dealers bars rolling mills bright bars ferrous and non ferrous metal non ferrous metal stainless steel dealers aluminium wire drawing wire drawing ferrous and non ferrous wires heat treatment non ferrous casting refractories wire mesh galvanized...
stainless steel pipes stainless steel tubes alloy steel dealers bars rolling mills bright bars ferrous and non ferrous metal non ferrous metal stainless steel dealers aluminium wire drawing wire drawing ferrous and non ferrous wires heat treatment non ferrous casting refractories wire mesh galvanized...
stainless steel pipes stainless steel tubes alloy steel dealers bars rolling mills bright bars ferrous and non ferrous metal non ferrous metal stainless steel dealers aluminium wire drawing wire drawing ferrous and non ferrous wires heat treatment non ferrous casting refractories wire mesh galvanized...