Hello Time-Nuts, Though this thread started out asking about power supplies, it seems to have morphed into a Rb cooling discussion as well.
I undertook a similar PRS-10 project a while back. Since the PRS-10 uses an SC cut crystal and has decent phase noise for a small rubidium I went the linear regulator route to try and preserve the 'goodness'. For cooling, I hate fans. They are noisy, they fail, and they generate magnetic fields. So, I sandwiched a couple of TEC coolers between the PRS-10 and a heat pipe unit from an old server. I have an AD590 sensor and simple control circuit that keeps the baseplate at a controlled temperature and the heat is transported out to the back of the box and dissipated by convection. I love it. My only complaint is the resolution of the PRS-10. Everything goes through the uP, including the EFC voltage, and the minimum DDS resolution is about 2x10E-12. So you will never get anything better than a good GPSDO anyway. Might as well stick with the GPSDO with a good oscillator, unless you actually need some long-term holdover performance. Regards, Skip Withrow _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
