[time-nuts] Rb video

Mark Sims holrum at hotmail.com
Thu Aug 8 22:50:37 EDT 2013

I also use a blinking status LED controlled by an ATTINY13 AVR chip.  It also reads a temperature sensor and controls a PWM'ed fan.  The LED blinks out the temperature.
BTW,  the guy made a lot of bad decisions in his build.  FOr instance,  he should have brought out the Rb frequency/PPS signals to BNC connectors and patched them externally into the input BNC's.  That way he could use any unused amplifier channels for other things.
If you want to get fancy, you can run a speed controlled fan on the heat sink to regulate the temperature. You still want to pick a temp that's as low as you can practically get it for your control point.  		 	   		  

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