New production Western Electric 300B’s for sale from WE

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Docere

Re: New production Western Electric 300B’s for sale from WE
« Reply #20 on: 14 Mar 2021, 02:19 am »
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

Re: New production Western Electric 300B’s for sale from WE
« Reply #21 on: 14 Mar 2021, 02:24 am »
Yomaha- what gear are these playing in?

Yomaha

Re: New production Western Electric 300B’s for sale from WE
« Reply #22 on: 14 Mar 2021, 05:06 am »
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.

  • Jr. Member
  • Posts: 43
Re: New production Western Electric 300B’s for sale from WE
« Reply #23 on: 14 Mar 2021, 10:32 am »
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.

  • Jr. Member
  • Posts: 43
Re: New production Western Electric 300B’s for sale from WE
« Reply #24 on: 14 Mar 2021, 10:35 am »
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.  :thumb:

Yomaha

Re: New production Western Electric 300B’s for sale from WE
« Reply #25 on: 14 Mar 2021, 06:58 pm »
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.