Chinese 300b

[wyan]

Hi, Duke58, I am using 801A. There are other alternative out there. Simply dig into some posts in this forum and you will find out. You need to use input transformer to reach enough amplification though (combined). Cheers.

[jwags818]

Originally Posted by 6A3sUMMER

jswags818,

Does your amp have:
No negative feedback, taken from the output transformer?
Negative feedback, taken from the output transformer?

Thanks!

No negative feedback. It hasw a 5400k Ω output transformer and a D3a driver. The deisgn in on Audiodesignguide.com Its the one he calls the reference 300B amplifier. Only difference is I bought tentlabs heater filament boards and I am using soviet milspec capacitors in the PS and Deulend coupling caps.

[woxman]

New SuperTNT 300BQ

[Schmitz77]

It seems that there are a high number of asians have become wealthy enough to be interested in good music reproduction. Its good, that they have their own products for buying and don't need to buy foreigns.
Nobody that I know buys china made products because of quality- its just the usual low quality product and that can be spotted from the pics itself.

[woxman]

The Chinese are not fools, they know what is beautiful and what is good. The Chinese do not reject good products from other countries in the world, if you can produce them.

[Schmitz77]

You beliefe in those measurement diagrams, really?
Oh man, they can fake everything, even measurement protocolls.
When they are on their european tour, chinese buy all those excellent and well made european products. Because they can be sure not to buy fakes and replicas.
Every chinese with money and status buys only original foreign products, if they can afford. They are able to build excellent quality (see Foxconn/Apple), but for that they want a premium price, too. If you have compared this tube with a real WE, engraved base, the result would be interesting.
The engraved one looks excellent. Thanks for sharing!

[woxman]

You have never used SuperTNT 300B, and you are not qualified to evaluate its quality.

Arrogance does not make life better



Match Pair SuperTNT 300BQ’s curve

[Schmitz77]

I've never made that statement.

Did you measure those tubes? Or is it chinese curves? A measurement with no values, no axis declaration?
You know, measurements are one thing, but what counts in the end is the audible quality.
Did you heard those tubes? Did you compare them with others?
How much is the price for a pair?
Or are you just doing progaganda for those tubes, guerilla marketing way?


Btw, chinese people, when they got wealthy, are the most arrogant of all. They never buy chinese goods, only foreign is good enough for them. Because nobody buys chinese when quality is the focus.
And speaking frankly, if I had to buy 300B, only original WE 300B would do. Nothing else. Maybe the Whitener 300B, but never chinese.

[woxman]

In a few days, I will give you a test SuperTNT 300BQ video on youtube

[woxman]

test video on youtube
Test A match pair of SuperTNT 300BQ‘s Curve - YouTube

No.46 original curve image


No.83 original curve image


No.46 red curve


No.83 blue curve


No.46 and No.83 Match curve