Vacuum Tube - 12AX7A-C5, Ruby Tubes

Vacuum Tube - 12AX7A-C5, Ruby Tubes image 1
Vacuum Tube - 12AX7A-C5, Ruby Tubes image 2
Click to zoom in
Vacuum Tube - 12AX7A-C5, Ruby Tubes image 1Vacuum Tube - 12AX7A-C5, Ruby Tubes image 2
Customer Images:
No Images yet! Submit a product image below!

Vacuum Tube - 12AX7A-C5, Ruby Tubes

This product is currently out of stock and will be placed on backorder. This product has substitutes available! Check them out.
Please log in or register to receive an email when this item is back in stock.

The Ruby 12AX7AC5 HG is Ruby’s most popular preamp tube. These high grade tubes are chosen by manufacturers and builders worldwide for their consistency and musicality. Often described as sounding sweet, the 12AX7AC5 has solid lows, warm mids, and silky highs. The 12AX7AC5 is a no brainer for use in high gain amps but are also excellent in lower gain amps in need of a little more drive.

All Ruby preamp tubes are tested and screened for low microphonics and low noise to ensure the highest quality and dependability.

RoHS Compliant
Item ID:
Product Measurements
No measurements are currently available for this product. Please contact us if you have any questions.
Packaging Information
Packaging Dimensions1 in. × 1 in. × 3.3 in.
Weight (Packaging)0.036 lbs.

My Project Lists

You must be logged in to add items to a project list.

Questions and Answers

Click each question to see its answers.
Asked by Anonymous on January 16th, 2018.
Matt H
January 16th, 2018
The sticker on these have HG but not HG+.

Product Reviews

5.00 out of 5 based on 4 reviews
- October 15th, 2019
5 out of 5

Ruby tubes are really a great replacement tube for just about any fender series amp
Very clean but meaty in the preamp stage coupled with JJ tubes in the power amp I’ve got an amazing combination in my Blues Jr Amplifier

- November 10th, 2018
5 out of 5

Great valves.

- July 5th, 2011
5 out of 5

I will say, that after 35 years, and literally thousands of amps modded and made, the chinese tubes are the closest to old smooth plate telefunkens of the new far, at least.
whoever grades them the best, i guess...
probably worth buying twice as many cheap, and grading em yourself...

- August 1st, 2010
5 out of 5

What can one say about a tube? Well, it works great, was shipped fast with no hassles, good fellas to do business with.

Don't see what you're looking for? Send us your product suggestions!