); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY
Neon John wrote: > Nah, not for this application. A Peltier module typically has a COP of 1. > That is, > it moves a watt of energy for each watt consumed. Thus, for each watt > moved, two > watts have to be dissipated to air. > > I can't imagine a well-insulated quartz oscillator needing more than a watt > or two of > cooling at the most. A heat sink capable of handling 4-5 watts should do the > job > just fine. > > Don: I've seen peltier-controlled "ambient" ovens before but I can't recall > the > details. I'm fairly sure one was a Fluke precision voltage transfer standard > in > which the zener reference diode was controlled to a constant temperature. The problem with Peltier coolers is that they have low thermal resistance to ambient. This makes them suitable only for non critical ovens. Rick Karlquist N6RK _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
