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6J1 Valve Tube Preamp Amplifier Board 2.0 AC 12V 1A Buffer Headphone AMP DIY
Specifications:
- SIZE : 77MM * 75MM * 52MM
- Power input : AC 12V 1A 5.5*2.5 PLUG
- Channle :2.0/ stereo
- Potentiometer Role: Volume adjustment + Power Switch
- Finished product, already been welded
- Not include power supply
Description:
FE-6J1-2 hifi tube pre-amp board is the circuit schematic design imitation crew Music fax X-10D,to be rational optimization,more stable performance than the original machine,tube play 10% increase. This board uses a single 12V AC input,the circuit processing provides 6J1 tube needed positive and negative voltage and filament power supply voltage.
Power works: an open power tube filament heating is started,when the boost from the zero-voltage start boosting hot filament tube,etc.,also happens to boost boosting finish,so this is the same with the guts rectification,8*470UF the capacitor filter very clean,good power supply system will not have a hum,the filament is 12V DC power supply,need two filament tube is connected in series with a DC filament also in order to reduce the noise.
Package list (No power supply):
- 1 x Amplifier Board
