The two parts look nearly identical from the datasheets. Since it was common to simply add an application diagram to an existing datasheet instead of creating a new part number, the LM9022 was probably a way to use LM4871s that failed some of the audio amplifier specs that would be critical to an audio aplication but would be of no concern for driving a VFD.
I have 200 of the LM9022s, I'll get some of the LM4871s and compare them. -- 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 [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/1b952eb5-40ba-427e-9dbb-4ed36db29b8e%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
