So this is a matter of academic curiosity and not an effort to make your device work. I think this is a neat thing to do. Based on your observations, this suggests some experiments.
In a previous post, I speculated that both part numbers might use the same chip. I now think this is less likely. Since this would be a destructive test, this should be done after all the other experiments. You can expose the silicon chip by using wire cutters to scrape away the epoxy. The chips will usually be bonded to the collector lead. If they do use the same chip, the difference could be due to a higher temperature in the smaller package. I would try using some canned Freon to chill the MPS-A42 to see if this changed its performance. Another less likely possibility is that this is the natural variation in the chip processing. You test this by comparing several parts with different date codes. I am sure that creative minds can conjure up other hypotheses. On Wednesday, April 22, 2020 at 8:03:34 PM UTC-7, Paul Andrews wrote: > > > > Or me? Well, the MJE340 is in a larger package, but other than that, > nothing. > > > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/3e815a63-ce7d-41d0-b549-35a57aa08b45%40googlegroups.com.
