Vacuum Tube - 12AX7A-C5, Ruby Tubes

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Vacuum Tube - 12AX7A-C5, Ruby Tubes

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9 pin miniature preamp tube (Amplification Factor = 100). This is the ubiquitous Chinese 12AX7 with added selection. The gain is high and the American "Ruby Tubes" must be filtering out the noisiest ones. For more information about our 12AX7 tubes, see our tech corner article on 12AX7s.

RoHS Compliant
Item ID:
Product Measurements
Weight0.036 lbs.
Packaging Dimensions1 in. x 1 in. x 3.3 in.

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Asked by Anonymous on January 16th, 2018. 1 person subscribed to this question
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Matt H.
January 16th, 2018
The sticker on these have HG but not HG+.
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Product Reviews

5.00 out of 5 based on 3 reviews
Graham Smith - November 10th, 2018

Great valves.

July 5th, 2011

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

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

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