12AX7B Fever Marantz 7 Preamplifier Tube Amplifier 12 times magnification Kit diy

12AX7B Fever Marantz 7 Preamplifier Tube Amplifier 12 times magnification Kit diy

Input sensitivity: 3mv

Magnification: 12 times

Features:

1.
The power transformer of this machine is a 76*40 annealed sheet,
shielded between the primary and the secondary, and the filament winding
is shielded by other windings to obtain an excellent signal-to-noise
ratio.

2. The potentiometer is a Taiwan high-precision 16-type double potentiometer, the first choice for fever!

3. Vacuum tube: shuguang 12A7B*3+6Z4*1

4.
The coupling capacitor is the world-renowned German WIMA electrodeless
coupling capacitor, and SPIRIT electrodeless coupling is a fever
capacitor.

5.
The case is made of high-quality 1mm steel plate after being polished
and chemically treated with high-temperature paint. The case feels very
good, looks beautiful, and has a strong atmosphere.

6.
The power supply part is welded with a universal development board, and
a multi-level CRC circuit is used to effectively reduce the bottom
noise.

7.
This tube amplifier kit comes with two scaffolding strips. The
scaffolding strips can simplify the difficulty of scaffolding. The left
and right sound channels can be welded symmetrically, which is
convenient, fast, and beautiful.