Most Often Needed Radio Diagrams, Volume 1
by M. N. BeitmainRadio Diagrams and Servicing Information from 1926 to 1938. Shows circuit diagrams for 600 of the most commonly found radios of that time. A valuable resource for restorations.
Radio, Wireless Telephone and Wireless Telegraph Equipment
High quality reprint of early (1920s) Montgomery Ward catalog of wireless equipment. 32 pages of radios, kits, tubes and books as available 70 years ago. Sorry, you can't order from this catalog! 0.2 lbs, 7" x 9.5", 33 pages.
Screw - M4 x 0.70, Phillips, Pan Head, Stainless Steel, Machine
Package of 4(Metric Threading: M4 x 0.70) - 20 mm long
Strain Relief - Nylon, 0.12" x 0.22" Wire (SPT-1)
Two conductor, nylon, .12" x .22" wire (SPT-1). Protects the lifeline of your electric/electronic products by absorbing the forces of pull, push, and twist that may be exerted on flexible power cords. Securely anchors, insulates, and protects cable at panel entry points.