Hello. According to prpopto.com they were founded in 1989 and produce led displays. Their website search for 640 returns a spare for military applications, seven segment green (led).
Easy to find out with a multimeter and will not be damaged in case it is a true panaplex. Have you already tried? Paolo -- 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 post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CABj2VaZUjGcV8_JDrFrkCv4fEcFmRxMyataQuWPZEdAvBg5msA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
