View cart Checkout

Vacuum Tube - 12AX7LPS, Sovtek

Click to zoom in

Customer Images:

No Images yet! Submit a product image below!


SKU:	T-12AX7LPS-SOVT
Item ID:	004459

Price: $14^.75

In Stock

View Specifications, Files, and Documents

Type

Preamplifier

9 pin miniature preamp tube (Amplification Factor = 100). This Russian tube is full bodied and well balanced. It has a high gain with a very smooth presentation. In overdrive, it is not quite as defined as the 12AX7-S-JJ, but it offers more crunchy fizz. For more information about our 12AX7 tubes, see our tech corner article on 12AX7s.

UPC/EAN: 683274021287

RoHS Compliant

View Product Measurements

My Project Lists

Specifications, Files, and Documents

Specification Sheet

595 KB

Product Measurements by Type (click to expand)

Product Measurements by Type
Amplification Factor		94
Capacitance, Cathode to Heater		5.0 nF
Capacitance, Grid to Cathode		1.6 pF
Capacitance, Grid to Heater		1.6 pF
Capacitance, Plate to Cathode		0.46 pF
Capacitance, Plate to Heater		0.46 pF
Capacitance, Plate to Plate		600 pF
Capacitance, grid to plate		1.7 pF
Grid Circuit Resistance (R_g), Fixed Bias		1 MΩ
Grid Circuit Resistance (R_g), Self Bias		2.2 MΩ
Grid Reverse Current		0.2 μA
Heater Voltage		6.0 - 6.6 V / 12.0 - 13.2 V
Heater to Cathode Voltage		200 V
Plate Current (I_a)		8 mA
Plate Dissipation (W_a)		1.2 W
Plate Resistance (R_a)		56 kΩ
Plate Voltage (U_a)		330 V
Transconductance (S)		1.7 mA/V

Packaging Information
Packaging Dimensions		1 in. × 1 in. × 3 in.
Weight (Packaging)		0.037 lbs.

Add a review

Product Reviews

5.00 out of 5 based on 3 reviews

5 out of 5

THE phase inverter tube in my opinion. I stock them. I've used dozens, in new builds, upgrades and repairs. Also can provide a nice warm tone in the V1 spot in a head cab ONLY. Speaker/cabinet/chassis vibrations can harm this long-plate tube, according to some.

prefsnider - January 22nd, 2018

report this

5 out of 5

These are great and reliable tubes for phono sections of stereo preamps. They have very long life way over 6000 hours. The EH short plate version is quieter but not as warm sounding. Those will last a long time too. Highly recommend the Sovtek 12AX7LPS +++++

Triodeotl - October 17th, 2015

report this

5 out of 5

I can't attest to this tube's value in any place but the driver stage, but in that position there is no other tube I would even consider. The best.

Screech - July 27th, 2014

report this

Questions and Answers

Click each question to see its answers.

How would these sound in my vox vt20x? 1 answers

report this

Asked by Anonymous on March 9th, 2017.

Answers (1)

Matt H.

Staff Member

March 9th, 2017

These tubes have a balanced eq and are nice and smooth.

report this

Answer this question

Have a question of your own? Ask us here!

Terms and Conditions

Customers who purchased this item also bought:

Substitute Products

The following items can be substituted for this product. While not necessarily exactly the same, they will function as replacement items in your project.