TUBE SUBSTITUTION HANDBOOK By Staff

MASTER Tube SUBSTITUTION HANDBOOK - FIRST EDITION, FIRST PRINTING

Vintage 1971 Howard W. Sams Tube Substitution Handbook No.14 20829

Vintage Tube Substitution Handbook No. 15 authored by Howard W. Sams, Eng. Staff

Vintage 1971 Howard W. Sams Tube Substitution Handbook No. 14 20829

Tube Substitution Handbook. V. 1- by Howard W Sams & Co, Howard W Sams & Co Book

1967 HOWARD Tube Substitution Handbook Valve Vacccum Tube Pocket Book No 10

Tube Substitution Handbook - Used