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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: Get your pliers posted by Awe-d-o-file on August 25, 2014 at 12:56:59:
"those from the 40's, 50's and 60's and later that died from not having safety grounds"
We were rugged in those days...
And I'm from them and I agree that at least for home audio the risk is minuscule.
Actually I think only my power amp has one now...
The common topology used to be only grounding your preamp and that to try and keep the phono preamp intact when you sparked the tonearm. Interestingly enough that also provided a "safety ground" on the side. Since all of the other devices were hooked to it with shielded cables any internal breakdown from powerline to case would cause fault currents to return to ground through the preamp and trip the breaker or blow the component fuse.
Look at AC/DC all-american five radios. One side of the line went right to the chassis and the plugs were completely unpolarized. But unless you did something totally stupid like pull off a knob (and somewhere there must be someone who didn't but we sure did) or touch a screw on the bottom what could go wrong?
Yet having spent my whole life in the radio/electronics arena I personally know of no one ever electrocuted. Shocked, yes. Killed, no. Ten minutes of training in electrical safety is of far more lifetime value IMHO. GFI's on the other hand are great, ah the grand march of tchnology, and likely a good choice for folks who want fault protection AND signal isolation.
Rick
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Follow Ups
- RE: Get your pliers - rick_m 08:16:12 08/26/14 (3)
- RE: Get your pliers - jea48 08:41:41 08/27/14 (2)
- RE: Get your pliers - rick_m 11:16:02 08/27/14 (1)
- RE: Get your pliers - jea48 08:08:30 08/28/14 (0)
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