1PCS New Fever 6J1 Tube preamp amplifier amp preamp buffer effect diy kit

The British music fax X-10 is a product launched in the mid-1990s. It has excellent sound effects and a unique appearance, which caused quite a stir after being put on the market. Its function and advantages are: connecting it between VCD, CD, DVD, optical drive and other digital audio sources and power amplifiers, can greatly reduce the "digital taste" and "transistor sound", so that the entire audio system has a sweetness Natural "guts"

The 6J1 fever preamplifier board is the design of the circuit principle of imitating the famous music fax X-10D, with reasonable optimization, the performance is more stable than the original machine, and the performance of the electronic tube has been improved by 10%. This machine uses a single 12V AC input, so you don’t have to worry about finding a high-voltage power supply. The board comes with a booster, allowing you to enjoy the flavor of high-voltage tubes under low power supply.

The working principle of the power supply: When the power is turned on, the tube filament starts to heat up. At this time, the boost starts from zero voltage. When the tube filament is hot, the boost is just completed, so this is the same as the bile rectifier, 8 470UF The capacitor filter is very clean, and the excellent power supply system will not have hum, the filament is DC 12V power supply, the filaments of two tubes are connected in series, and the DC filament is also used to reduce noise.

The coupling capacitor adopts the MET series of Taiwan FARAD non-polar capacitors, high-frequency low-resistance electrolytic capacitors, 1% precision metal film resistors, Beijing J-class military-regulated electronic tube 6J1

 

[Model number] 6j1 tube (can replace models 6AK5, 6AU6, 5654, etc.)

[Price] The kit includes an electronic tube without a power supply for 40 yuan per set, the finished product includes an electronic tube without a power supply for 52 yuan per set, and a matching power transformer is 15 yuan per set

 

[Channel type] 2.0/stereo [Power input] AC AC12V 0.8A /5.5*2.5 plug

 

[Weight of the whole machine] 82 grams [Knob function] Power switch/volume adjustment

 

[Overall size] width 77 x depth 75 x height 52MM

 

Instructions:

 6J1 tube buffer 0.85 times magnification, connected between the sound source and the pre-stage or post-stage, can effectively filter the digital taste, the human voice is better, the bile taste is strong, and the price is very high! Great value for money!

 

1. AC 12V input: Use a DC3.5/5.5*2.1 socket, use an AC 12V power adapter, if you want to use a plugless AC 12V transformer, you need to solder the power cord to the circuit board. Remember: DC power input cannot be used, otherwise it will not work!

 

2. Left channel input/right channel input: It is the audio signal input terminal, which can be connected to mobile phones, computers, M3, MP4, and other music players.

 

3. Left channel output/right channel output: It is the audio signal output terminal, which can be connected to the audio signal input terminal of the power amplifier and the power amplifier board to provide a brave music enjoyment for the power amplifier!

 

4. Power switch/volume knob: Turn the knob counterclockwise and just start to decrease the volume. When the volume is turned to the minimum, if you continue to rotate until a "tick", then the power is turned off and the indicator light goes out; in the off state, Rotate the knob clockwise and hear a "tick". The indicator light is on, indicating that the power has been turned on, and the volume is at the minimum at this time. If you continue to rotate it clockwise, you will increase the volume.