Grahame Marsh <[email protected]> wrote: > TV programme "Secrets of the London Underground" Series 4 Episode 7 - > Victoria Line Control Room c. 1968 - about 12 minutes in.
Not sure; I wonder if they're some form of "light pipe" display, with (usually) filament lamps. -- rgds LAurence <>< -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/66CDDBB3.5000108%40iapetus.plus.com.
