Submitted by guitar-list on
- vacuum tubes
Dates of manufacture:
The 12AX7 is the most common preamplifier tube used in guitar amps, high-end audio and professional music equipment. It is a dual triode, with gain of 100, it is still manufactured in Russia and Slovakia. Its European name is ECC83.
This tube appeared in long plate (17mm) and short plate (15mm) variations
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