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Dr. Samuel Ritchie EI9 FZB
Signal Distribution Amplifier ( 1 - 500 MHz).
This article was published in the June 2025 edition of PW Magazine (https://pocketmags.com/practical-wireless-magazine).
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High resolution photos and schematics can be found here.
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Information on some of the components used is here.
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How to get the gerbers or just order the PCB is here.
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The ZIP of the VISIO file I used to make the decals is linked here.
I have some spare PCB's - List is here.
The photo above indicates 1 - 30 MHz and not 1 - 500 MHz as per the title. This is because the photo is of the unit that has the BPF installed on the PCB limiting operation to the HF bands.
Updated - 9 May 2025

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