The Learning Center / FAQ

* Still Under Construction *


1. Identifying Vintage NOS Vacuum Tubes by Brand, Country and EIA Codes


2. Randy Miller's 6T9 Compactron Vacuum Tube DIY Audio Amp - Instructions & Schematic


3. Asa Patterson's Investigation on the use of Numutron (Nixie) Tubes as Triodes for Audio


4. Howard Rose's Journey on Restoring a "Lost Cause" Vintage Gibson GA19 RVT Falcon Tube Amp & A Word on Inconsistent Schematics



 Links to Resources & Trusted Websites



Circuit Diagram - Schematics is the language of electronics. It provides a concise and comprehensive diagrammatic description of a circuit. allows users to connect and share designs and ideas in a like-minded community.