Videosphere Aerial Plugs & Sockets - UK Vintage Radio Repair and Restoration Discussion Forum

Alvin · 6th Feb 2012, 2:20 pm

Are the external aerial plugs & sockets as used on the JVC Videosphere available anywhere?

I recently acquired a near perfect example complete with original loop antenna which clips on to the telecopic rod and I wish to use the loop to feed a freeview box which in turn goes to the UHF aerial socket on the TV.

I've bodged it for the time being by twisting wires round the pins of the loop aerial's plug and poking the wires from the freeview box into the TV aerial socket but want to come up with a neater solution .

One option would be to unsolder the ribbon cable (complete with its moulded plug) from the loop and connect that to the coax from the freeview box and fit another cable with coax plug to the loop but I would prefer to keep it looking as original as possible.

Pics show the type of plug and socket I'm looking for.

Alvin

Tractorfan · 6th Feb 2012, 3:58 pm

Hi,
If I'm not mistaken (and I could be) Ribbon cable is 300ohms impedance and co-ax is 75ohms. You may need a 'balun' to match one to t'other. The mismatch could produce some odd effects on the screen.
Just a thought.
Cheers, Pete

Alvin · 6th Feb 2012, 4:12 pm

Yes I was aware of that but I'm in a very strong signal area so impedance matching probably isn't that important - the current bodge is certainly working ok!

Alvin

6th Feb 2012, 2:20 pm	#1
Alvin Heptode Join Date: Nov 2003 Location: East London, UK. Posts: 761	Videosphere Aerial Plugs & Sockets Are the external aerial plugs & sockets as used on the JVC Videosphere available anywhere? I recently acquired a near perfect example complete with original loop antenna which clips on to the telecopic rod and I wish to use the loop to feed a freeview box which in turn goes to the UHF aerial socket on the TV. I've bodged it for the time being by twisting wires round the pins of the loop aerial's plug and poking the wires from the freeview box into the TV aerial socket but want to come up with a neater solution . One option would be to unsolder the ribbon cable (complete with its moulded plug) from the loop and connect that to the coax from the freeview box and fit another cable with coax plug to the loop but I would prefer to keep it looking as original as possible. Pics show the type of plug and socket I'm looking for. Alvin Attached Thumbnails

6th Feb 2012, 3:58 pm	#2
Tractorfan Dekatron Join Date: Mar 2008 Location: St. Frajou, l'Isle en Dodon, Haute Garonne, France.(Previously: Ellesmere Port, Cheshire, UK.) Posts: 3,184	Re: Videosphere Aerial Plugs & Sockets Hi, If I'm not mistaken (and I could be) Ribbon cable is 300ohms impedance and co-ax is 75ohms. You may need a 'balun' to match one to t'other. The mismatch could produce some odd effects on the screen. Just a thought. Cheers, Pete __________________ "Hello?, Yes, I'm on the train, I might lose the signal soon as we're just going into a tunn..."

6th Feb 2012, 4:12 pm	#3
Alvin Heptode Join Date: Nov 2003 Location: East London, UK. Posts: 761	Re: Videosphere Aerial Plugs & Sockets Yes I was aware of that but I'm in a very strong signal area so impedance matching probably isn't that important - the current bodge is certainly working ok! Alvin