The crap results were probably due to the soldering messing around with the crystal properties. Using a pressure-contacts approach instead seemed to do the tric

The crap results were probably due to the soldering messing around with the crystal properties. Using a pressure-contacts approach instead seemed to do the trick: http://tinyrock.com/resources/4000918/Bandgap-Measurements-In-Ge http://tinyrock.com/resources/4000918/Bandgap-Measurements-I... Has it really been 10 years!