Price is for assembled
Without tubes
can provide schematicc for your reference
Produced by ZHI, a series of high end tube phono amp & tube preamplifier board kit, you can seach ZHI in my store
Circuit refer on famous classical phono amp circuit CARY AE-1, this tube preamp worth you to have a try!
Voltage marked on PCB already, AC5V/6.3V/3A, AC280V-0-280V/100mA(±5%), AC14V/3A (±10%)
PCB main amplifier board size: 160 x 230 mm
psu board size: 100 x 230 mm
Potentionmeter avalible of 16 type and 27 type and 168 moto type
Tubes using : 6SN7 x 4
Rectifier default use 5YC
( without tubes on this price, you can use your own tubes or buy from me)