15-08-2017, 07:21 AM
I have one of the earthing wands (Nick used a different expression
) from CP.
There were certainly some hefty paper caps around. Shorting links are standard practice on these, not just in RF heavy areas. I tried to acquire one but H&S objected as they contained PCBs. Or at least were believed to contain PCBs.
I don't see why the feeder would have had a solid centre. Sheer waste of material due to skin effect.
On my first couple of visits to CP in the mid 1980s I was a guest of the BBC, collecting CO6/509 625>405 converters. The ITV side of the station was unmanned, controlled from Croydon which was their main engneering base. ITV had invested a lot of money and effort in automated TX control and monitoring. See IBA Technical Review volume 6. In theory these are available online but I can't find them at present. At 30MB or so each they're too big to upload here.
) from CP.There were certainly some hefty paper caps around. Shorting links are standard practice on these, not just in RF heavy areas. I tried to acquire one but H&S objected as they contained PCBs. Or at least were believed to contain PCBs.
I don't see why the feeder would have had a solid centre. Sheer waste of material due to skin effect.
On my first couple of visits to CP in the mid 1980s I was a guest of the BBC, collecting CO6/509 625>405 converters. The ITV side of the station was unmanned, controlled from Croydon which was their main engneering base. ITV had invested a lot of money and effort in automated TX control and monitoring. See IBA Technical Review volume 6. In theory these are available online but I can't find them at present. At 30MB or so each they're too big to upload here.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
