30-11-2016, 03:21 PM
Indeed every design is different, how you fudge not having the correct working part can depend on many things. It's sad that purely finance considerations can remove parts costing less than 1/2 cent in volume. Even for neons I put two series resistors (one is marginal rating), and especially for series resistors of my HV capacitor leakage tester (they don't actually break down but voltage is nearly twice rating if the capacitor on test is leaky)
