RIDER Transistor Substitution Guidebook No. 276 Electronics Manual

1961 International Transistor Substitution Guidebook – Rider

Vintage Archer Transistor Substitution Guide Radio Shack 276-2000 Electronics

Archer Transistor Substitution Guide & Semiconductor Reference Handbook 1970's

ARCHER TRANSISTOR SUBSTITUTION GUIDE, RADIO SHACK, 276-2000A, 1974, VINTAGE !!!

1960 John F. Rider Complete Tube Caddy Tube Substitution Guidebook Booklet

Rider first supplement receiving tube substitution guide book cat. no. 139

Popular Tube Transistor Substitution Guide 1972