Sealed-off ignitrons for welding control
David Packard, J. H. Hutchings · Electrical Engineering · 1937
Discussion and authors' closures of a paper by David Packard and J. H. Hutchings published in the January 1937 issue, pages 37–40, and presented for oral discussion at the electronics session of the winter convention, New York, N. Y., January 27,1937.