First Watt B1 Triode review are on line
6moons: audioreviews FirstWatt B1 with Nutube
and Nutube we can buy from RS
Nutube 6P1 | Tube thermoionique double triode Parallele, 17 broches, 45 x 16 x 5.6mm | Korg Nutube
Have a nice day
6moons: audioreviews FirstWatt B1 with Nutube
and Nutube we can buy from RS
Nutube 6P1 | Tube thermoionique double triode Parallele, 17 broches, 45 x 16 x 5.6mm | Korg Nutube
Have a nice day
glad to realize that Shappy was just binned , not banned
Thanks indeed FAB's can always contact me by PM
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would rather build my own power supply. doable ? just a 24v supply?It's 24V smps with (+) in the center after this photo courtesy of 6moons
B1 Triode need only one 24V smps brick.
You get two mono outputs. Korg Nutube is double triode in one package.
Just connect Your power supply (+) to the first 10R resistor of the filter and (-) to the ground.
Filter +F output and + R output connection to his corresponding +F and +R buffer circuit input(s).
Look at Papa schematic post # 1
Try maybe smps at start point and focus build efforts on Korg buffer circuit
after that if Your B1Triode connected to amplifier are 100 % tested
yes is probably time for modifications ( maybe not
)or other psu build to your taste so You can compare with first version imho.
I have the Millet version and it sounds really good. Using my spectrum analyzer software I only see a very slight addition of 2nd harmonic. A very good preamplifier to give a SS amplifier some lovely flavor if you are looking for it. In the discussion of the circuit he does mention that J-fets can be used for buffers with just some resistor changes. How much it would help audibly is a subject for someone that builds both. I would expect that there would be a measurable difference. NP did some more improvements as well. I believe it was a cascode on the J-fets as well. Having no boards available will keep most from building NP design. When and if someone comes up with some boards I will build NP design.
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