|
Vintage Telephony and Telecomms Vintage Telephones, Telephony and Telecomms Equipment |
|
Thread Tools |
17th Aug 2020, 11:03 pm | #1 |
Nonode
Join Date: Oct 2014
Location: West Midlands, UK.
Posts: 2,181
|
Mains spike killer?
Or is it, or any other use. I've had one of these "protective earth source adapter 1A " in the mains feed to my TV etc for a lot of years, having found one powering up some ancient BT spike sensitive kit. Does it really stop my TV etc getting spikes. Or is it just snake oil?
|
18th Aug 2020, 8:33 am | #2 |
Heptode
Join Date: Jan 2008
Location: Hakadal, Norway
Posts: 640
|
Re: Mains spike killer?
Yes an no.
It depends on what kind of spikes you get. Lightning struck the power line near our house. The TV that was unplugged died. The house caught fire. The telephone line was protected with some kind of fuses and a spark gap unit. The touch tone phone died, the old rotary throw the clapper from the ringer. When I pressed it back, twisted together the telephone wire from each side of the evaporated fuses, it worked. The protection worked that far. We had noise on the TV, and I could never locate the source so I took the live wire and gave it 2 turns around a iron ring, and did the same with the neutral and the problem was solved. Since then I have learned a lot, and some of those protective plugs are just snake oil, some has really high class filters and protection, and non of them will handle a real lightning hit. The bad thing is that price does not tell anything about quality. dsk |
18th Aug 2020, 8:43 am | #3 |
Heptode
Join Date: Jan 2008
Location: Hakadal, Norway
Posts: 640
|
Re: Mains spike killer?
If it is "noise" read this: http://www.m0nwk.co.uk/mains-electri...ise-reduction/
Since I hate to spend money, I have used a filter from an old PC cabinet on some equipment. dsk Last edited by dagskarlsen; 18th Aug 2020 at 8:59 am. |
18th Aug 2020, 10:12 am | #4 |
Dekatron
Join Date: Apr 2012
Location: Worksop, Nottinghamshire, UK.
Posts: 5,549
|
Re: Mains spike killer?
|
18th Aug 2020, 10:22 am | #5 |
Heptode
Join Date: Jan 2008
Location: Hakadal, Norway
Posts: 640
|
Re: Mains spike killer?
No blown capacitors from the filters so far, but yes it does not smell good, and are probably not healthy
Iguess the oldest filter I have is in the AEG turnamat washing machine, 50 years old, and still working (after some fettling) |
18th Aug 2020, 11:29 am | #6 |
Dekatron
Join Date: Nov 2010
Location: Oxford, UK.
Posts: 4,941
|
Re: Mains spike killer?
"If it is "noise" read this: http://www.m0nwk.co.uk/mains-electri...ise-reduction/ "
Good link, and embedded links too. Thanks! |