Re: [time-nuts] Achievable temperature stability for Thunderboltenvironment?

2013-03-31 Thread David Hooke
Sims holrum-pkbjnfxxiarbdgjk7y7...@public.gmane.org Sent: Saturday, January 15, 2011 12:53 PM Subject: [time-nuts] Achievable temperature stability for Thunderboltenvironment? Using Lady Heather's temperature controller (fan+cardboard box+solid state relay+baffling and thermal mass to taste) I get

Re: [time-nuts] Achievable temperature stability for Thunderboltenvironment? Answer found

2013-03-31 Thread David Hooke
] Achievable temperature stability for Thunderboltenvironment? Using Lady Heather's temperature controller (fan+cardboard box+solid state relay+baffling and thermal mass to taste) I get around +/- 3 millidegree temperature control when the AC/furnace is not running and +/- 20 millidegrees with them

[time-nuts] Achievable temperature stability for Thunderboltenvironment

2011-01-16 Thread Mark Sims
There is some info on implementing the temperature controller in the comments at the start of the file heather.cpp You can use something the simple single ended transistor driver that Warren described or use a DC solid state relay.  The program can manipulate two of the RS-232 port control

Re: [time-nuts] Achievable temperature stability for Thunderboltenvironment

2011-01-16 Thread Kevin Rosenberg
On Jan 16, 2011, at 9:00 PM, Mark Sims wrote: There is some info on implementing the temperature controller in the comments at the start of the file heather.cpp Hi Mark, Thanks very much for the information. I wasn't actually aware that Heather was open-source. That's great as I can read the