UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

llama · 1st Jan 2019, 2:38 pm

Well that's something to think about - and act on!
I'd though the only issue with what I'd done was the slight tingle between signal earth (to projector) and signal earth of the lounge equipment.
I think I have some braid-breaker chokes from video telecoms equipment in my stash. No-one has mentioned such things so I may just find one and drop it into circuit, reconnect the mains earth and check for hum bars.
I'd like to see a video opto-isolator circuit or even one to buy at an OK price (say £20).
Graham

1st Jan 2019, 2:38 pm	#28
llama Octode Join Date: Jun 2006 Location: St Osyth, Nr Clacton, Essex, UK. Posts: 1,482	Re: "Elevated ground" Good idea? Well that's something to think about - and act on! I'd though the only issue with what I'd done was the slight tingle between signal earth (to projector) and signal earth of the lounge equipment. I think I have some braid-breaker chokes from video telecoms equipment in my stash. No-one has mentioned such things so I may just find one and drop it into circuit, reconnect the mains earth and check for hum bars. I'd like to see a video opto-isolator circuit or even one to buy at an OK price (say £20). Graham __________________ Half my stuff is junk - trouble is, I don't know which half!