Re: growler/ armature check

Posted by Bob on January 08, 2004 at 22:33:53 from (66.163.134.177):

In Reply to: growler/ armature check posted by sdterry on January 08, 2004 at 16:27:28:

If you have a typical older growler with the continuity light built in, be carefull with the test probes for the continuity function. Some of the old units used full 120 Volt AC on these, and plugged into the wall socket one way, one of the test leads was connected to the AC neutral, and the other through the indicator lamp filament to 120 volts. If you reversed the plug, the one test lead would be directly connected to 120 volts, and the other to neutral, through the bulb filament. Not too safe by today's standards, and could give a nasty shock when touched (or worse).

Not all the old units were that way, but some were, and, yes, I've had a nasty shock or two from the 2 old units I have. It's not just a matter of touching the tip of the probe. When you use it for one of it's intended purposes, to check for shorts from the windings to the armature (or frame), the whole unit becomes electrified, and easy to accidently touch. (OUCH!)

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