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Post by Richard on Jul 7, 2022 7:36:01 GMT 12
I was looking at a popular 1930s AWA for sale on TM and remembered that the AWA used an Asbestos sheet between the Rectifier and IF coil can. Apparently you can spray the Asbestos sheet with UHT paint to seal in the asbestos and make it safer? ( I hope that the dust on this radio isn't the asbestos breaking down?) If anyone else has knowledge of other possible "potentially dangerous parts" to look out for in Vintage radio's?, please feel free to comment.  |
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6A8G.
Society Members
Hard working kiwi soundmixer.
Posts: 69 
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Post by 6A8G. on Jul 7, 2022 16:34:52 GMT 12
In your pic (above) the line cord is only two-core, no earth.
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Post by stanley on Jul 11, 2022 21:17:28 GMT 12
Oil filled capacitors from the days where PCBs were all the rage (type of electrical insulating oil)
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Post by Richard on Jul 14, 2022 8:05:14 GMT 12
Cadmium plated chassis that has gone to oxide i.e Yellow/Yellow-white powder. The oxide is very toxic and can be absorbed through the
skin or inhaled.
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Post by Peter Walsham on Jul 14, 2022 10:39:31 GMT 12
Asbestos in power cords is a very real worry, as it's frequently found. I'm not sure about oil filled radio capacitors using PCB's. I remember (when I was a contracting electrician) replacing many 1000's of old fluorescent light fittings that had PCB filled capacitors in them though. PCB oil filled capacitors were (and still are) a very real concern I also think I remember reading in trade/industrial publications (in the 1980's) that radio type capacitors weren't much of a problem. One publication I read had photos of 100's of different capacitors to watch out for. I have always viewed those tropicalised capacitors (usually rectangular tin cans with binding post type terminals) with great suspicion ever since though. PCB capacitors were shipped overseas to a specialised destruction facility where they were burnt at a very high temperature (which was the only was to permanently destroy the oils). I wonder if there was much lead paint used in the painting of chassis's (I assume they were painted with lacquer paint, but I have no idea if lead was one of the ingredients used). In the early 1970's there was concern among us TV servicemen about being exposed to X-ray radiation from the EHT rectifiers in B & W TV sets. MMMmmm. It might be better not to overthink too much about stuff. It might be safer to stay in bed and do nothing (maybe, I think . . . . . . . . ?)
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