HP5328 OCXO Upgrade

2 layer board of 2.51x2.51 inches (63.75x63.75 mm).
Shared on June 13th, 2015 13:56.

Supports the common 8663HS OCXO, and provides precision 10 MHz reference for an HP5328 frequency counter.

https://hackaday.io/project/6278-hp5328-counter-ocxo-replacement

https://github.com/tomcircuit/derbylink

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HD6309 SBC

2 layer board of 6.31x3.95 inches (160.27x100.25 mm).
Shared on April 8th, 2014 00:02.

HD6309 single board computer. Files at github under tomcircuit. Also at hackaday projects under user tomcircuit.

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