Лампов усилвател предусилвател Fever 6J1 tube preamp amplifier board Pre-amp tube amp 6J1 valve preamp bile buffer diy kits

Лампов усилвател предусилвател Fever 6J1 tube preamp amplifier board Pre-amp tube amp 6J1 valve preamp bile buffer diy kits Descriptions:

100%Brand New and High Quality

Note:This is Diy Kits.

Feature:

1.SIZE : 77CM * 75CM * 52MM

2.Power input : AC 12V 1A 5.5*2.5 PLUG

3.Channle :2.0/ stereo

4.Potentiometer Role: Volume adjustment + Power Switch



Specification:

FE-6J1-2 fever 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.



Packaging

1pcs*HIFI 6J1 Valve Pre-amp Tube stereo PreAmplifier Board diy kits