VacuumTubeEra

Reference Materials - 1950's

Receiving Tube Substitution Guide Book, First Edition - H. A. Middleton - 1950
215 Pages,  32.2 MB,  .PDF

Receiving Tube Substitution Guide Book, First Supplement - H. A. Middleton - 1951
44 Pages,  5.3 MB,  .PDF

Receiving Tube Substitution Guidebook, Second Supplement - H. A. Middleton - 1954
41 Pages,  3.4 MB,  .PDF

Receiving Tube Substitution Guidebook, Third Supplement - H. A. Middleton - 1957
68 Pages,  6.9 MB,  .PDF

Federal Selenium Rectifier Replacement Guide (Excerpts) - 1955
29 Pages, 4.2 MB,  .PDF

Metallic Rectifiers & Crystal Diodes - 1958
157 Pages, 14.4 MB,  .PDF

Sylvania Tube Substitution Manual - 1953
39 Pages,  4.2 MB,  .PDF

Selenium Rectifier Catalog Excerpts
5 Pages, 740 KB,  .PDF

Superior TD-55 Tube Tester - Manual & Tube Data
25 Pages, 1.5 MB,  .ZIP

Philco 9200 Tube Tester
Manual, Calibration & Supplemental Tube Chart - c. 1958
20 Pages, 2.1 MB,  .ZIP

The VTVM
How it Works
How to Use It
By Rhys Samuel - 1956
224 Pages, 35 MB,  .ZIP     

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