EH GOLD: -- Select a tube spec -- 12AT7EH Gold Plated Pins 12AU7EH Gold Plated Pins 12AX7EH Gold Plated Pins 2A3EH Gold Plated GRID 300BEH Gold Plated GRID 6922EH Gold Plated Pins 6H30PiEH Gold Plated Pins
ELECTRO-HARMONIX: -- Select a tube spec -- 12AT7 EH 12AU7 EH 12AX7 EH 12BH7 EH 12DW7 EH 300B EH 5U4GB EH 6550 EH 6922 EH 6973 EH 6AQ8 EH 6BM8 EH 6CA4 EH 6CA7 EH Big Bottle 6CG7 EH 6L6 EH 6V6GT EH EF86 EH EL34 EH EL84 EH KT88 EH KT90 EH
GENALEX GOLD LION: -- Select a tube spec -- 12AT7/B739/ECC81 Genalex Gold Plated Pins 12AU7/B749/ECC82 Genalex Gold Plated Pins 12AX7/B759/ECC83 Genalex Gold Plated Pins 6922/E88CC Genalex Gold Plated Pins 6V6GT/CV511 Genalex Gold Plated Pins KT66 Genalex KT77 Genalex KT88 Genalex N709/EL84 Genalex PX300B Gold Pins Genalex
SOVTEK: -- Select a tube spec -- 12AX7LP Sovtek 12AX7LPS Sovtek 12AX7WA/7025 Sovtek 12AX7WB/7025 Sovtek 12AX7WC Sovtek 2A3 Sovtek 5881/6L6WGC Sovtek 5881WXT Sovtek 5AR4 Sovtek 5Y3GT Sovtek 6550WE Sovtek 6A3 Sovtek 6B4G Sovtek 6C19Pi Sovtek 6C33C-B Sovtek 6C45Pi Sovtek 6EU7 Sovtek 6H30Pi Sovtek 6L6WXT+ Sovtek 6N1-P Sovtek 6SL7 Sovtek 6SN7 Sovtek 7027 Sovtek KT66 Sovtek KT88 Sovtek
SVETLANA: -- Select a tube spec -- 6550C Svetlana 6D22 Svetlana 6L6GC Svetlana 6N1-P Svetlana EL34 Svetlana KT88 Svetlana SV572-3 Svetlana SV572-10 Svetlana SV572-30 Svetlana SV572-160 Svetlana SV572 B Svetlana SV811-3 Svetlana SV811-10 Svetlana SV83 Svetlana
TUNG-SOL: -- Select a tube spec -- 12AX7 Tung-Sol 12AX7 Tung-Sol Gold Pins 5881 Tung-Sol 6550 Tung-Sol 6L6G Tung-Sol 6L6GC STR Tung-Sol 6SL7 Tung-Sol. 6SN7 GTB Tung-Sol 6V6GT Tung-Sol 7581 Tung-Sol EL34B Tung-Sol KT66 Tung-Sol KT120 Tung-Sol KT120 Tung-Sol CURVES
-- The most common questions about Vacuum Tubes -- Q: What is a vacuum tube? Q: What is a JAN tube? Q: What is grid leakage? Q: What are soft, hard, and medium rated tubes? Q: What is the best 12AX7 for my amplifier? Q: How does New Sensor/Electro-Harmonix match power tubes? Q: What is the truth about tube testers? Q: What is Amplifier Bias? Q: When should I change the Tubes in my amplifier? Q: What is the difference between Class A and Class AB amplifiers? Q: What are Class A, Class B and Class AB amplifiers? Q: What is an Octal Tube? Q: What are NOS and NIB tubes? Q: Why is there a difference in Tube and Transistor sound? Q: Why do some tubes have several number designations? Q: What is tube rolling? Q: How long, under normal use, should I expect my power tubes to last? Q: I have heard the word "Microphonic" used to describe a tube. What does it mean? Q: Will the tubes in my amp all wear out at the same rate? Q: I am a performing musician, should I bring an extra set of tubes to my gig, just in case?