
To date, there are 5 manufacturers of the 12AX7 Vacuum Tube, in the list we have provided a Datasheet from each in PDF format. You can download by clicking on the PDF icon.
The most common of them are General Electric Company, Electronic tubes factory, Svetlana, RFT, Shuguang.
Manufacturers | Names | |
---|---|---|
![]() | GEC [General Electric Company] | ![]() |
![]() | Ei-RC [Electronic tubes factory] | ![]() |
![]() | Svetlana | ![]() |
![]() | RFT | ![]() |
Shuguang | ![]() | |
Marconi | ![]() | |
BRIMAR | ![]() | |
ETC2 [List of Unclassifed Manufacturers] | ![]() |
Absolute maximum ratings 12AX7 (Ta = 25oC unless specified otherwise):
- Plate Voltage – 300 Volts
- Positive DC Grid Voltage – 0 Volts
- Negative DC Grid Voltage – 50 Volts
- Plate Dissipation – 1.0 Watts
- Heater-Cathode Voltage:
- Heater Positive with Respect to Cathode – 180 Volts
- Heater Negative with Respect to Cathode – 180 Volts

In the datasheet for the 12AX7 Vacuum Tube you will find technical specifications, a complementary pair and all possible replacements.