RED DOT Electronic TubesTM

Two Markets

Now that Phædrus Audio is manufacturing Electronic TubesTM in quantities of 100 to 200, we are starting to understand our yields and long-term production costs for these tubes. Moreover, over the last two years of marketing and selling these devices, we realise that there are two markets for these tubes: a DIY-market; and a replacement-market for original, classic microphones.

Whilst customers for the replacement market are happy to pay for three-level QA'd tubes with a 3 year warranty, the DIY market are looking for a better value solution.

So, we have launched value versions of the AC701 and the VF14M. These tubes carry the standard 1 year warranty. These are our standard production tubes and are fully tested to specification.


During this initial test we select the best 10% of tubes in performance terms and soak-test them, after which each tube is re-tested, certificated and marked with a RED DOT. These are our premium quality tubes and carry a three year warranty. More importantly, these tubes are covered by Phædrus Lifetime Care.

Prices for standard and RED DOT tubes are on our prices page.

Phædrus Audio RED DOT Electronic TubesTM - 3 years warranty, three level QA'd and selected for premium performance.


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