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B1 with Korg Triode
B1 with Korg Triode
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Old 2nd October 2018, 07:44 PM   #301
Soundhappy is offline Soundhappy  France
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Quote:
Originally Posted by MEPER View Post
…...we could also use the "real deal"?
But now I already have two Nutubes waiting for PCBs……..


YouTube
Western Electric is back with 300B triodes new production 2018 ~ 19
http://westernelectric.com/products/...ifications.pdf
Incredible news ! Thanks Meper
B1 with Korg together with Vfet Push-pull amp is plenty good imho.
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Old 2nd October 2018, 08:15 PM   #302
MEPER is offline MEPER  Denmark
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Yes, it has been a news for quite a while now…..they are delayed as expected…..but let us see if real WE300B will come out. They say they has some of the old materials to build an original WE300B. Some experts says that it is not possible because the knowledge on how it was done......is all gone. But it seems they have the old equipment to do it. The question is the materials…...to make it real real.....I have read that the materials used is quite "exotic" and some "ingredients" may not be allowed to be used today. But very interesting. I get a mail when there is something new. I think they hope I will buy a pair of WE300B...….and maybe I will……but first we have to finish the Nutube amp!
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Old 2nd October 2018, 08:28 PM   #303
Soundhappy is offline Soundhappy  France
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Originally Posted by MEPER View Post
Yes…but first we have to finish the Nutube amp!
for Nutube future Geezers
BTW Thomas Mayer aka VinylSavor & Elrog in Germany produce bunch of DHTriodes with thoriated tungsten filaments
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Old 2nd October 2018, 08:34 PM   #304
MEPER is offline MEPER  Denmark
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These DHTs looks quite simple from outside but materials are complex……

We see now that DHTs can be made very small......


There is an additional advertising link here for 300B:
YouTube
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Old 2nd October 2018, 08:47 PM   #305
Soundhappy is offline Soundhappy  France
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Excellent Meper !

we need back in production SIT's and power jfet's.
Maybe we do use unknow today technology in the future :
semiconductors with nanomaterials or hybrid components half vacuum tube half transistor
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Old 2nd October 2018, 08:55 PM   #306
MEPER is offline MEPER  Denmark
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If there are so many audiophile "tube people" that it can pay a brand new factory for WE300B tubes.....then why not.....maybe we should call the CEO of Toshiba and tell him to produce JFETs again…...or SONY or who made the "funny stuff"…..back then…..
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Old 2nd October 2018, 09:55 PM   #307
Soundhappy is offline Soundhappy  France
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e-books :

http://www.westernelectric.com/stati...ransistors.pdf

http://www.westernelectric.com/stati...lectronics.pdf

Western Electric - Technical Library
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Old 3rd October 2018, 10:21 AM   #308
Soundhappy is offline Soundhappy  France
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Twin triode was glued to the pcb for better sleep
Source : 6moons: audioreviews FirstWatt B1 with Nutube
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Old 3rd October 2018, 09:46 PM   #309
qwertyl is offline qwertyl  United Kingdom
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I am a bit confused about the highlighted parts of the circuit. Looking at the photos of the original B1 with Korg triode these parts are not repeated for each channel. Should F1 pins together with F3 pins of the Nutube be connected to 475 resistor and 1000uF capacitor? F2 and G go to ground?
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Old 3rd October 2018, 11:26 PM   #310
Nelson Pass is offline Nelson Pass  United States
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B1 with Korg Triode
On my artwork those parts are repeated for each channel.

F1 and F3 are separate.
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