12AX7 Svetlana, 12AX7 Datasheet
12AX7
Manufacturer Part Number
12AX7
Description
High-Mu Twin Audio Triode
Manufacturer
Svetlana
Datasheet
1.12AX7.pdf
(2 pages)
T
signal dual triode intended for use as a low-noise preamplifier for
audio applications. It is a direct plug-in replacement for any
12AX7, 7025 or ECC83 in music or audio amplifiers. All ratings
of the Svetlana 12AX7 meet or exceed those of the original
version; top-quality cathode materials and extensive aging yield
outstanding performance in high-fidelity amplifiers. The Svetlana
12AX7 is made exclusively at the Svetlana Electron Devices
factory in St. Petersburg, Russia, and is marketed worldwide by
PM Components Ltd. and in the USA by PM of America Inc.
TYPICAL MECHANICAL AND ELECTRICAL PARAMETERS
Electrical
Cathode
Heater voltage (AC or DC)
Heater current
Heater-cathode voltage
Amplification factor (nominal)
Transconductance (nominal)
Plate resistance (nominal)
Typical equivalent hum and noise voltage,
Interelectrode capacitances (typical),
Base
Basing diagram
Socket
miniature
Operating position
____________________________________________________________
HEADQUARTERS:
1687 Shelby Oaks Drive
Suite 8
Memphis, TN 38134
Phone: 901-388-2424
Fax: 901-388-2405
he Svetlana™ 12AX7 is a miniature glass-envelope small-
per section, rms averaged, Rg=0
per section, with cathode grounded:
Input
Output
Grid to anode
895 B. Street PMB #481
CERAMIC TUBE DIVISION:
Hayward, CA 94541
Phone / Fax: 510-885-1247
www.svetlanausa.com
12AX7 HIGH-MU TWIN
AUDIO TRIODE
Oxide-coated, unipotential
12.6 volts AC or DC (+-
0.6 volts), center-tapped
150 mA (12.6v) or 300 mA
(6.3v)
+-200 volts peak
100
1600 uS
62,500 ohms
1.8 uV
1.6 pF
0.46 pF max
1.7 pF
standard 9-pin miniature,
glass button
JEDEC 9A
9-pin
Any
12AX7 Summary of contents
Page 1
... direct plug-in replacement for any 12AX7, 7025 or ECC83 in music or audio amplifiers. All ratings of the Svetlana 12AX7 meet or exceed those of the original version; top-quality cathode materials and extensive aging yield outstanding performance in high-fidelity amplifiers ...
Page 2
... Memphis, TN 38134 Phone: 901-388-2424 Fax: 901-388-2405 46.5 mm (1.835 inches (0.867 inches) 55.5 mm (2.180 inches) 15 grams 330 volts 1.2 watts volts -50 volts 10.0 megohms 300 volts 100,000 ohms 1000 ohms 40 v rms CERAMIC TUBE DIVISION: 895 B. Street PMB #481 Hayward, CA 94541 Phone / Fax: 510-885-1247 www.svetlanausa.com ...