6AV6 GE Duplex-Diode High-Mu Triode Vintage 7-pin Miniature Vacuum Tube in BOX NOS New Old Stock
12AX7 - Wikipedia
What is 12AX7? The Definition for 12AX7
Tube type list
6AT6 GE Duplex-Diode High-Mu Triode Vintage Miniature Vacuum Tube 7-Pin NOS New Old Stock in Box
NOS NIB Raytheon 6AV6 Vacuum Tube Audio | Inox Wind
12AX7 - Wikipedia
Tube AM micro-transmitter
6AV6 @ The Valve Museum
Retrovox - Mullard EL38 - CV450 output pentodes. NOS 1960s. Similar spec to EL34. Pinout same as EL34 except anode/plate connection is top cap, not pin 3. Gives better anode isolation and