Chinese Phantom powered tube microphone?

[LevinGuitar]

https://www.alibaba.com/product-detail/Electric-Board-U-style-87-Condenser_1600607622041.html
Any thoughts about that tube?

 

[mhelin]

no but the capsule seems to be connected to a FET input stage...

 

[Khron]

Why does that tube daughterboard look like it's connected to (only) that one big fat solder pad on that second PCB? Which, by the way, seems to host a Schoeps-type oscillator (single NPN transistor, and the two green inductors are just behind the metal cap of the tube - metal cap which "should" be either the anode or the grid, and yet is connected nowhere).

 

[Tubetec]

Agreed ,
the tube in this design seems to be there purely for placebo effect .

 

[LevinGuitar]

Just marketing so?

 

[Khron]

Marketing, and offloading some ancient surplus junk tubes..(?)

 

[kingkorg]

Agreed ,
the tube in this design seems to be there purely for placebo effect .

Yup, kinda like cathode follower mics
Sorry, had to do it.

 

[ZHOUJUN]

Generally, the 48V phantom power supply for microphones supplies very small current. After boosting, it may not be able to meet the current of the tube heater，The tube may only be used as a light bulb here.

 

[Khron]

"May"? One could not even (realistically) acknowledge THAT possibility...

 

[JeffKall]

"May"? One could not even (realistically) acknowledge THAT possibility...

Like the eternal refrigerator question …
when the body tube is replaced, does the tube stay lit ???

 

[Renzo]

Phantom power in mini jack?
30$ ?

 

[miczone]

The tube appears to be a high-voltage rectifier from the CRT TV days. The cap on the tube is the anode which isn't connected to anything.. Oh, by the way, the anode voltage on these tubes was about 20,000 volts! Very strange.

 

[miczone]

Yeah, must be a Chinese version of the 1960s 1X2B.

 

[Disco Volante]

Nowhere in the designation "tube microphone" is it implied what kind of tube or the functionality, if any, of the tube...
People want vacuum tube in microphone, we give them vacuum tube in microphone!

 

[miczone]

If the tube was really microphonic, it might augment the pickup of the capsule.