Thank you Nicholas for the links: without S&H they already cost more than I paid for my unit! And I have the curious power cord ;-)
Meanwhile I asked for help on a forum and an innocent comment opened up new possibilities: Heathkit was linked to Schlumberger. In fact they sold the IM-102 DVM that is electrically very similar to Weston 1240, if not identical. And a manual/diagram can be found online. Now I can troubleshoot the no-signal problem and give a name to the bulb. And, by the way, there are other devices that used the bulb as "1" so even more [documentation] sources (like Philips DVMs). Greetings, 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/CABj2Vabo-0qSL-hP%2BNs6w3p7sY8iaouoP725JyFX0Rt-9ueNyA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.