Bare PCB: just one pair PCB. not include other parts
DIY KIT: include all parts. will need youslef to solder it
Assembled board: we will solder and test it well before shipping.
This list default price are not include the tubes!!!
This board is mono Mirror Design. the circuit is base on the famous Conrad-johnson preamp.The sound is very excellent.
Each board works voltage: 0-AC220V (about 25mA) 0-AC7V (6.3V-9V are all ok. about 1.2A)
LED color of tube base : Blue
Each Channel PCB Size: 178mm*72mm
Each board Use Tube: 2pcs 12AX7 or ECC83
● Gain: about 10 times.
● input impedance:47K
● SNR: 90dB;
● Frequency response: 10Hz--30KHz;
● Distortion: ≤1%.
we can provide the schematic for this board. and also have the suitable Power transformer for it. if you want buy the transformer. Please contact us. thanks!!!
This board is mono Mirror Design. the circuit is base on the famous Conrad-johnson preamp.The sound is very excellent.
Each board works voltage: 0-AC220V (about 25mA) 0-AC7V (6.3V-9V are all ok. about 1.2A)
LED color of tube base : Blue
Each Channel PCB Size: 178mm*72mm
Each board Use Tube: 2pcs 12AX7 or ECC83
● Gain: about 10 times.
● input impedance:47K
● SNR: 90dB;
● Frequency response: 10Hz--30KHz;
● Distortion: ≤1%.
we can provide the schematic for this board. and also have the suitable Power transformer for it. if you want buy the transformer. Please contact us. thanks!!!
The following board with tubes just for appreciation only!! (packge will not include the tubes)
