JEŻEWSKI Mieczysław, JANIK Aleksander - Radjoodbiorniki lampowe. Precise ways of mounting and adjusting simpler tube receivers, namely: 6 single-lamp, 13 two-lamp, 13 three-lamp, 6 four-lamp [...]. Warsaw 1927, published by M. Arcta. 8, pp. [4], 128, [6]. broch. Bibljot. Radjowa, no. 2.
Covers rubbed and soiled, yellowing of extreme pages, otherwise good condition.
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