This is a bare PCB of a low distortion broadband linestage amplifier based on Borbely EB-797/203. The amplifier features DC-coupled and hybrid tube/MOSFET SE output design and low rail voltage supply. The input tube can be the popular ECC86/6GM8 or E88CC.
The board can be used for various amplifier configuration such as non-inverting, inverting amplifiers, or buffer stage, or I/V conversion of DAC chips.
The input can be configured as either balanced input, or unbalanced input.
Output is unbalanced output.
The board adhered closely to the original boards component placement to obtain a close to original performance. This board is fully verified to function and no bug except silkscreen printing of a diode polarity, as shown in the picture, and errata would be included in the documentation email to buyers after purchase.
Each board is for one audio channel. For stereo , two boards are needed.
Specifications :
Open loop gain : 53dB
Open loop frequency response : 90kHz
Distortion( THD) : 1kHz 0.15%@1V, 0.35%@3V, 1.2%@10V
Supply voltage : +/-24Vdc 30mA and 6.3Vdc 350mA( tube filament)
Board dimension : 68mm x 76mm
PCB thickness : 1.6mm
PCB Copper thickness : 75um( 4 times normal thickness !)
We provide schematic and part list to the buyers
We do air shipping worldwide at US$4.50.
The assembled board picture is attached for reference. The listing is for one piece of bare board.
We welcome combined shipping.
Track Page Views With
Auctiva's FREE Counter
