[time-nuts] Anybody want a Thunderbolt power supply?

[Mark Sims]

You have to be careful choosing a linear regulator to clean up a switching supply.   Many just wind up passing the noise through.  Pay attention to the noise, PSRR and CMRR vs frequency specs, etc

Take a look at the "voltage regulation" section of that home built VNA page for an example:
http://hforsten.com/cheap-homemade-30-mhz-6-ghz-vector-network-analyzer.html