This is a low noise JFET input, all discrete transistor tone control stereo board. The input is responsible by low noise J-FET 2SK246 which acts as a buffer to provide low impedance output to the tone control circuit network. This is followed by a low noise NPN transistor to provide the appropriate gain. The transistor is operating at 100% feedback mode. This is thus a unity gain circuit and dedicated for tone control purpose.
The board contains two audio channel, and each channel's tone control can be individually adjusted for maximum flexibility.
The board is a slim design so it can be retrofitted to your existing project or put into a handsome housing.
low side : 30Hz -- -22dB to +19dB ,
high side : 20KHz -- -19db to +19.5dB. Small signal distortion Input impedance : 40K ohm.Output impedance : 180 ohm
Gain : unity
PCB Dimension : 55mm x 160mm. Supply voltage : +24V dc.
We provide schematic( with component values) and connection diagram to buyers by EMAIL.
We do air shipping worldwide at US$6.00.
