Davac4
Davac 4.0
Davac 4 was succesfully built by OK1USW, OK1UGE and OK2JTB.
Circuit diagram
PCB
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PCB bottom side (600 DPI)
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Components placement top
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Components placement bottom
Note: 600 DPI have images in Full resolution, MediaWiki uses thumbnails.
PCB www.hamshop.cz
Ondra OK1CDJ has made PCBs and offers it at www.hamshop.cz. Many TNX!
Parts
Transformer TR-1/1 www.tme.eu Jack 6.35 K3606D www.gme.cz
SMT variant by OK2JTB
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Top side
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Bottom side
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Photo 1
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Photo 2
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Photo 3
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Schematics
All data: File:Davac4-ok2jtb.zip
Made by OK1UDC(SK) & OK1UGE
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Front panel
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Back panel
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Components side
Note OK1ZIA: better use USB-B type connector
Combined Davac4 and contest machine RPi
Guys from OK1RPL made this amazing compact contest solution.