Vacuum Tube, 12AX7 / ECC83, Electro-Harmonix, Preamp

Description

Product Details
Vacuum Tube, 12AX7 / ECC83, Electro-Harmonix, Preamp
T-12AX7EH
Sold individually
This Russian tube is full bodied and bright with a more straightforward presentation. It packs a lot of bite with its higher-than-normal gain. In overdrive, it offers a lot of crunchy fizz. High gain preamplifier tube with ultra low noise and detailed, musical tone. Unique spiral filament eliminates filament to cathode induced hum common on amplifiers that use AC on the filaments.
Superior high gain short plate format Twin Triode, with ultra-low noise and detailed, musical tone.
Ultra-low noise thanks to unique spiral filament which eliminates cathode-to-filament induced hum on certain amps
ECC83/7025 equivalent
For more information about our 12AX7 tubes, see our tech corner article on 12AX7s.
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Measurements
Product Measurements:
Amplification Factor
78 min, 92 nominal
Capacitance, Cathode to Heater
5.0 nF
Capacitance, Grid to Cathode
1.6 pF
Capacitance, Grid to Heater
1.6 pF
Capacitance, grid to plate
1.6 pF
Capacitance, Plate to Cathode
0.44 pF / 0.36 pF
Capacitance, Plate to Heater
0.44 pF / 0.36 pF
Capacitance, Plate to Plate
520 pF
Grid Circuit Resistance (R
g
), Fixed Bias
1 M&ohm
Grid Circuit Resistance (R
g
), Self Bias
2.2 M&ohm
Grid Reverse Current
0.2 μA
Heater to Cathode Voltage, Negative
200 V
Heater to Cathode Voltage, Positive
100 V
Heater Voltage
6.0 - 6.6 V / 12.0 - 13.2 V
Plate Current (I
a
)
9 mA
Plate Dissipation, per triode (W
a
)
1.0 W
Plate Resistance (R
a
)
54.1 k&ohm
Plate Voltage (U
a
)
300 V
Transconductance (S)
≥ 1.4 mA/V, 1.7 mA/V nominal
Packaging Information:
Packaging Dimensions
1.1 in. x 1.1 in. x 3.1 in.
Weight (Packaging)
0.038 lbs.
About Us
About Amplified Parts:
Amplified Parts was created to serve musicians looking to customize their sound or simply fix their amplifier or guitar. Amplified Parts is backed by over 25 years of experience serving the electronic hobbyist market. We are a member in good standing of the Better Business Bureau.
The focus of Amplified Parts is to serve the musician who is not an electronic technician and who wants to create his/her own sound or tone by modifying their existing amplifier or guitar.
Every musician is unique and has the desire to create his/her own tone. Amplified Parts assists in finding that unique sound.
We typically ship the same day if your order is placed before 12:00pm MST Monday through Friday excluding holidays.
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