[volt-nuts] Lm399 heater

Frank Stellmach frank.stellmach at freenet.de
Sat Sep 15 05:16:15 UTC 2012

Hello Fred,

there's still the old (orig. 1976) Application Note AN-161 from former 
National Semiconductor online, now T.I.:


It explains heater and reference circuit, and that the stabilization set 
point is 90°C.


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