Very sorry for asking such a fundamental question. I thought I had this all sorted but I'm having a problem in correlating my understanding with what I see others doing.
When checking specifications for IN-18's over at Tube-tester.com - he suggests: Ignition Voltage 170V Voltage drop 150V Nominal current 6mA So I deduce, with a 170V HV supply, the series resistor should be (for nominal current) (170-150)/0.006 = 3K3 Similarly for something like ZM1040, supply volts 170V, maintaining volts 140V, nominal current 4.5mA, series resistor (170-140)/0.0045 = 6K6 I note that in kits such as PV Spectrum and others - for this kind of tube they specify 10K series resistors. Am I mis-interpreting the specifications, in particular those for the IN-18 as the voltage references are worded slightly differently? Are the tubes in question being driven at a lower current on purpose? I'm ready to learn! Richard -- 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/79cf25b3-0c41-4d1c-9255-97530f31e26a%40googlegroups.com.
