Re: [time-nuts] a newbie question: where can I purchase 794.7nm VCSEL for building CPT rubidium clock?

I don't know of any particular reason why a DVD-player laser should be faster, since neither CD nor DVD players need to deliberately modulate the lasers anyway. At least, that's the first blush answer. However, these diode lasers are generally noisy, apparently due to the inevitable presence of

[time-nuts] Affordable PoE 6-digit time displays?

You could also run Lady Heather on a PI with NTP and select one of the zoomed full screen clock displays (analog watch or digital clock). ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] Affordable PoE 6-digit time displays?

From: Bob kb8tq Hi I think this is one of those really small market items. You can probably cobble one together from bits and pieces for less than you can buy a good one. Bob === For example: http://www.satsignal.eu/raspberry-pi/DigitalClock.html 73, David GM8ARV