[volt-nuts] Looking for VREF - SZA263/LTFLU-1/MCA19xxN

[Frank Stellmach]

Mike,

the SZA263 and the LTFLU are Custom Specific circuits made exclusively 
for Fluke, and therefore the suppliers were not allowed to sell those 
freely on the market. The 332B used a similar reference assembly from 
TI, but including the necessary heater.

I would also opt for replacement with a LM399 circuit, as the longterm 
stability (1 yr) and T.C. are definitely on a better level.


Frank