Brooke Clarke wrote: > Hi Bruce: > > Do you know how the Agilent 4352 VCO tester generates the very clean > programmable control voltage for the VCO? > > Also why polysulphone for the thermal can for the LM399? Would Delrin or > Nylon > work? > > Have Fun, > > Brooke Clarke > http://www.prc68.com > > Brooke
Polysulfone foam is better since the case temperature can approach the 90C junction temperature. Delrin has inferior high temperature mechanical and electrical properties. Leakage (from the heater to the zener) between pins via the insulator may be problematic. AFAIK nylon/delrin is a poor insulator at high temperatures. Bruce _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
