Datasheet · Triode · Mullard·RCA·Telefunken

12AX7 datasheet

12AX7 / ECC83 — original PDF document from Mullard·RCA·Telefunken. Free, no signup.

Download
⬇ Download 12AX7 datasheet (PDF)

/datasheets/12AX7.pdf

Key 12AX7 specs at a glance

Type
Triode
Primary use
Preamp
Era
19470s
Heating
indirect
Heater
12.6 V / 0.15 A
μ (amplification factor)
100
gm (transconductance)
1.6 mA/V
rp (plate resistance)
62.5 kΩ
Max plate voltage
300 V
Max plate dissipation
1 W
Base
noval
Manufacturer
Mullard·RCA·Telefunken
Equivalents
ECC83, 7025

More on the 12AX7