View Single Post
Old 27th Aug 2021, 10:24 pm   #7
Top Cap
Top Cap's Avatar
Join Date: Mar 2006
Location: Watford, Hertfordshire, UK.
Posts: 1,266
Default Re: Green goo in coax

Originally Posted by Trevor View Post
while I was in the trade I was called to a faulty Rotel tuner on opening it up i could see that the input socket was corroded on checking the installation I noted that the coax feeder cable when opened up was full of water ! My conclusion an open connection box at the aerial end had allowed rain water in .This along with the height difference created enough pressure for the rain water to enter the tuner and create the corrosion
When in the trade many many many years ago, my boss and I went to fix a TV suffering from poor picture. The coax was full of water as could be seen by the water dripping from the aerial plug. When the customer asked how could that be, my boss said "You've been watching too much Thames Television" . It's appreciated youngsters may not get that joke.
Whether the Top Cap is Grid or Anode - touching it will give you a buzz either way!
Top Cap is offline