Spactz AC 12V 1A 6J1 Preamp Tube Preamp PreAmplifier Headphone DIY Kits

Product description

• AC 12V input: The DC3.5 / 5.5 x 2.1 , 12V AC adapter, non-plug AC 12V transformer, cord need to solder on the board. : You can not a input, otherwise it does not work!
• FE-6J1-2 tube -amp board is the schematic design crew Music fax X-10D,to optimization,more stable performance than the machine,tube 10% increase. This board uses a single 12V AC input,the processing provides 6J1 tube needed and negative and filament supply .
• 6J1 Tube Buffer 0.85 magnification, connected between and or after class, can effectively filter flavor.
• works: an tube filament heating is started,when the boost from the - boosting hot filament tube,etc.,also happens to boost boosting ,so this is the with the rectification,8*470UF the filter clean,good supply system not have a ,the filament is 12V supply,need two filament tube is connected in series with a filament also in order to reduce the .
• the left-channel input / channel input: audio signal input, can connected to mobile phones, computers, , the MP4, and other music .