Condition:New
Type:Logic ICs
Model:12AX7
Version 2019 uses 12AX7 Maranz M7 circuit pre-gallbladder machine kit finished fever pre-amplifier
Try to make you happy, and I learn to wear 12ax7b electronic tube biliary front-end
Version 2019 uses 12AX7 Maranz M7 circuit pre-gallbladder machine kit finished fever pre-amplifier
The sound quality is mellow and medium frequency sweet.Beauty, nature, guts and sweetness attract thousands of people to pursue this voice.OfEnthusiast! Our shop has undergone several revisions.Successful application of 12ax7-BPre-Biliary Suite andThe sound quality of the finished machine is amazing! Friends who like voice and guts may as wellTry, the treble is delicate but not harsh, the baritone is warm and mellow, the bass is soft but not weak.Unexpected results!
Human voice, natural, delicate, strings fluent, stretching, the more you listen, the more you like to listen, the sound field is very good.Atmosphere, every musical instrument is playing carefully, positioning, image is good, transonicFine, velvety and elegant, low frequency is also very meaningful.
Fever gallbladder preamplifier can only be used with power amplifier
100 K double potentiometer with 15mm axis length of Japanese ALPS 16
Suite. 122x7b*3 of finished product is one level higher than 12AX7
Fully sealed switch is 2*4 gear produced by Taiwanese-owned factory
Please advise the following instructions
The finished machine is 6z5p*1 12ax7b*3
DIY is a spirit, an attitude, a persistence, a belief, a harvest. More is a kind of self-transcendence...
Product characteristics
0:The 100k double potentiometer with 15mm shaft length of Japanese ALPS 16 is used, and the switch is 2*6 gear produced by Taiwan-funded factories. The positioning port can be adjusted to 4 gear. All AC power supply is used for 3 12AX7 parallel power supply 4+5 short connection and 9 leg connection.3.15v*2=6.3v
1. Adopting 0.8mm drawing stainless steel sheet NC stamping case, the signal-to-noise ratio is as high as - 99dB, and the background is extremely clean.
2. The power transformer adopts H360 0.5 76*40 cores, the primary is two sets of 110v, the series connection is 220 V and the parallel connection is 110 v. The secondary filament winding is grounded by double shield layer, and the grounding line is yellow-green line.
3: A set of filaments 3.15v*2 for three 12AX7 filaments (12ax7 4+5 and 9 feet 6.3v)
4. High voltage 270v*2 uses 6z5p biliary rectifier.
5. Amplifier circuit is welded by lap bar and PCB is used for power supply.
6. Gold-plated RCA pedestal, 4 sets of signal input and 1 set of output.
7. Use WIMA MKP10 0.1uF capacitor, 0.39uRIFA PHE426 Series, SwedenI T 2.2uf, capacitor, etc. Audio special capacitor.
8. Applicable to Global Voltage Standard, (110v 220V through wiring method), and 220v-230v-240v primary purchase time and customer service instructions confirm before shooting
9: The overall height of the cabinet size 32*17*5 cm is about 10 cm. The space for the machine to be placed should be no less than 18 cm.
Major data:
AC power supply: 110v-220V (240V) optional, global voltage standard
Input socket standard: RCA socket (4 sets of input, 1 set of output)
Frequency response: 10-26 kHz (+/-0.11 dB) voltage amplification 15 times
Total harmonic distortion: 0.078%
SNR: -99dB
Note: In the actual assembly process, because each person's installed capacity is different, the installed machine also has a gap, we suggest to buy finished products!











The above circuit diagrams are for reference only. The actual circuit diagrams have been changed, whichever circuit diagrams are sent out shall prevail.