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QRV since 1993.

RX pre-amp details

The pre-amp is build around the AD8055AN Voltage Feedback Amplifier. W1FV is the father of this design. His design notes are writen down in a email on the topband reflector.

In Eagle we have made a pcb and its just a copy our the orginal design. The only difference is the connection to the ground rod an antenna where we moved them to the output/bottom side.
We add a option for a led as surgest by K1XX in case of trouble shooting.



The pcb layout.

The value of each component is written in the BOM


The schematic of the amp.
Download as pdf in black/white.


A amp in a closure.


A close-up at the bottom site.

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