6J1/6J2 Tube Amplifiers Audio board Amplificador Pre-Amp Audio Mixer 6J1 Valve Preamp Bile er Diy Kits

Note: Two models of kits with tubes, 6j1 and 6j2, are shipped randomly. If you need to specify a model, please consult customer service.

Description:

1. SIZE: 77 MM * 75 MM * 52 MM2. Power input: AC 12 V 1 A 5.5 * 2.5 PLUG3. : 2.0 / Stereo4. Potentiometer Function: Volume + Power Switch settingSpecification:FE-6J1-2 tube fever plate pre-amp is the circuit schematic imitation design team Music fax X-10D, to be rational optimization, more stable performance than the machine, 10% tube set increase. This board uses a single 12 V AC input battery, the proceing circuit provides 6J1 tube required positive and negative voltage and voltage supply filament voltage.Energy works: an open tube feeding the filament heating is started, when the im from zero-tension start to increase the hot filament tube, etc., also happens to boost boost finish, so this is the same with the 8 * 470 UF very clean filter, good power supply system will not have a buzzing, the filament is 12 V DC power supply, needs two tube is connected in series with a DC filament filament too in order Reduce noise.All kits need to be aembled by buyers thelves