early 1926 rca radio operation books tubes fleming valve RCA VICTOR
Бренд: RCA VICTOR
~ 3 690 ₽
40.00 $
Характеристики
selling 2 early rca radio operation books both are hard cover dated 1926 very early rca books these 2 lessons in each book there is a ton of info on the early days of radio in these books a section on tubes also the fleming valve and more one book is 231 pages the other is 257 there is a short one page question section for each lesson hard to find early rca books in nice shape