Posted on September 2nd, 2014 1 comment
What’s inside an IEC60601-1 medical class 5V mains DC-DC plugpack?
What is the difference between PCB clearance and creepage?
A German FRIWO 5V FW7555M/05 brand medical grade isolation unit vs a cheap Wun Hung Lo consumer brand.
Also a comparative look at transformer construction.
Posted on August 31st, 2014 1 comment
Dave opens his mail
Posted on August 30th, 2014 No comments
Some interviews from the 2014 Sydney Mini Maker Faire at the powerhouse museum.
Posted on August 27th, 2014 3 comments
Probe shock video showing the piezoelectric effect
Posted on August 22nd, 2014 13 comments
Lots of test equipment auction goodness from Precision Mechatronics who went into liquidation.
And is it possible to mod a system PSU with binding posts?
Service manual HERE
Keithley 2400 SMU Source Unit
Agilent 54845A 1.5GHz Infiniium Oscilloscope
Agilent E3646A dual output bench power supply
Agilent 6641A and 6643A DC system power supplies.
HP 3488A GPIB Matrix Switch