Reply to "What Electrical Diagnostic Tools Do You Use? / Suspicious Bell-Whistle Controller"

Former Member

I'm just grasping at straws. The ZW is 60 years old plus or minus 5 years, and has never had any service on it. (Hasn't needed it, actually). Thinking about it, I did meter the A/U & D/U posts recently and they're both putting out 18 - 20 volts.

I'm am suspicious of the diode string with the six pairs. Can you briefly describe which of the two leads of each diode pair do I connect together? Also, wouldn't the continuity test I performed on each individual diode reveal which one was bad?

3/19/141:38 PM

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