[Docere]

I like that the curves for each tube are included - it provides additional evidence the tubes were indeed tested and matched.

I think they look decently matched: transconductance is roughly around 1% difference and plate current (for the given -Ug) is within 5%.

[Tomy2Tone]

Yomaha- what gear are these playing in?

[Yomaha]

Yomaha- what gear are these playing in?

Tommy2Tone,

quick run down

•Vinnie Rossie DHT Pre >>> Pass XA25
•Source: PS Audio DSD Sr. Dac >>> Qobuz >> Roon > Mac laptop             
•Speakers: Salk Song3 BeATs
•Cabling: Auditorium 23

[Terence T.]

Here is the card for the other matches tube, Terrance. Came as a matched pair.

Hi Yomaha,

Thanks for the photo of the Test Certificate of the other matched pair tube. In fact, I have also received a WE300B matched pair from a reopened order after I cancelled the first order back in April, 2019.

[Terence T.]

I like that the curves for each tube are included - it provides additional evidence the tubes were indeed tested and matched.

I think they look decently matched: transconductance is roughly around 1% difference and plate current (for the given -Ug) is within 5%.

Hi Docere,

Now I know what is a matched pair vacuum tubes from their test certificates. 

[Yomaha]

Hi Yomaha,

Thanks for the photo of the Test Certificate of the other matched pair tube. In fact, I have also received a WE300B matched pair from a reopened order after I cancelled the first order back in April, 2019.

Cool! Be curious to read what you think of them.