Reply to "Question about a post war 275watt ZW"

I have a 1044 with a stud rectifier in it and it works good, so problem to me seems to be in ZW whistle switch...

When it left the factory, the five volt boost was wired in series with the rectifier disk. In an earlier post, you mentioned seeing the 5 volt increase. Maybe your switch isn't wired correctly.

You can test your rectifier / diodes with an ohmmeter. Set your meter to it's lowest range for ohms. With the transformer unplugged, and the control handles set to zero, touch one lead to each side of the rectifier. It may or may not show any value. Exchange the two leads.
If it showed a value before the exchange, it should not show a value afterwards.
Conversely, if it did not show a value before the exchange, it should show a value afterwards.
If it always shows a value, or never shows a value, then there is an issue.

6/23/1811:41 AM

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