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This is the PCB of a All J-FET low-noise preamplifier PCB. The design is based on the EB-108/435 designed by audio guru, "Mr. FET", Erno Borbely. Each gain stage is in cascode configuration so that high speed and low distortion performance can be obtained.
EB-108/435 was designed as high quality , low-noise discrete opamp. It was applied in the original project as a I-V stage( using inverting input). Being itself an opamp in nature, we adapted the design to make it a voltage amplifier instead thus this preamplifier board.
Each board consists of two unbalanced line stage, OR each board can be configured as a single channel balanced-in balanced-out line stage ! For the latter case two boards will form a super monoblock balanced preamplifier !
PCB dimension: 140mm x 62mm.
PCB thickness 1.6mm. Super thick copper ( 2oz, 75um !!) is used, which is four times the normal thickness.
Surface Finishing : Double-sided soldermask coating for maximum durability !
We provide schematic and part list for this PCB by EMAIL.
We do air shipping worldwide at US$4.00.
| Item Specifics | |
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| Brand : | Unbranded/Generic |
| MPN : | Does not apply |
| UPC : | Does not apply |
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All FET Cascode preamplifier stereo PCB ref EB-108/435 Borbely !
This is the PCB of a All J-FET low-noise preamplifier PCB. The design is based on the EB-108/435 designed by audio guru, "Mr. FET", Erno Borbely. Each gain stage is in cascode configuration so that high speed and low distortion performance can be obtained. EB-108/435 was designed as high quality , low-noise discrete opamp. It was applied in the original project as a I-V stage( using inverting input). Being itself an opamp in nature, we adapted the design to make it a voltage amplifier instead thus this preamplifier board. Each board consists of two unbalanced line stage, OR each board can be configured as a single channel balanced-in balanced-out line stage ! For the latter case two boards will form a super monoblock balanced preamplifier ! PCB dimension: 140mm x 62mm. PCB thickness 1.6mm. Super thick copper ( 2oz, 75um !!) is used, which is four times the normal thickness. Surface Finishing : Double-sided soldermask coating for maximum durability ! We provide schematic and part list for this PCB by EMAIL. We do air shipping worldwide at US$4.00.
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