Thank you Dave and John. I triple checked my measurements, and ABCD of that transformer are in series. AD is the arithmetical sum of the three values I wrote earlier today. As well as AC is a sum and BD too.
Weird, but since I have no diagram whatsoever of the General Microwave 475B power meter I cannot reconstruct anything. The two PCBs of the meter have logic chips, a BCD to 7 segment decoder, few IL74 optocouplers, LM339's, NE555. I will look for a variometer at the next ham swap meet in mid April. That's where 1 year ago I started my journey into the Nixie & C. world with 4x B5092 and 1x B5094. Before that I struggling going from 5Vdc to 3.3Vdc of other projects, and now I'm into HVAC (yes, I should know the safety rules <g>). In the meantime I will check my junkbox for a suitable transformer to build a step-down chain. 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/CABj2VaY4RYwLpHPjA84EhgUSyisqnpfUPf9PUHXhuH%3DU867pcA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
