Rubidium 10Mhz standard
I have both a Rubidium time standard on e-bay. This is a atomic clock when warm extreme stable! I will use this to stabilise the 23cm transverter, FT-817 for EME and my AirSpy spectrum analyser.
Via the serial-port the frequency of the standard can be changed. So i have places a display, arduino board, power supply and the standard in a housing to build adjustable frequency standard:)
A picture i have made with my FLIR heat camera. The stickers on the unit are showing the correct temperature of 60C! Yes it will become hot.