Identifying Tubes

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I have a bunch of .s with the numbers completly rubbed off. How do I go about figuring out what they are? Some have numbers on the base which Iume are part numbers so is there a reference for that? Thanks!Terry------------------ .Vacuum .s were simply a commodity that everyone needed like batteries or light bulbs are today. This is why you see even majornds like Sylvania with RCA date codes. To make things worse, these companies usually removed any clues as to who made the like EIA codes..In January, 1999, a group of collector-historians interested in the use, history, and preservation of electron .s and electron technology formed the Collectorsociation TCA . The Bylaws of the TCA It is a handy way to identify "mystery .s" and communicate with other Collector-historians. To join, simply .This is a list of vacuum .s or thermionic valves, and low-pressure gas-filled .s, or discharge .s. Before the advent of semiconductor devices, thousands of types were used in consumer electronics. Many industrial, military or otherwise professional .s were also produced. Only a few types are still used .

The Most Frequently Asked Questions by Doug's .s Customers..Signs of Termite Infestation, Termite home infestation pictures.This Bollard model CEME-. is designed to provide easy installation of a maintenance free, pour in place Bollard .What cylinders and .s can I use in Canada? How do I identify a TC specification cylinder or? Where can I get a TC specification cylinder or?.

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