Replacing link cable in 1950s Blaupunkt Car radio

[Old Sparky]

In the past I've used CCTV cable for this sort of thing. Have a look at this for an example:

http://www.kenable.co.uk/product_info.ph...ts_id=3361

The challenge will be finding somewhere that will sell you a small quantity. I don't have any here, unfortunately.

Alternatively, you can make your own cables to any specification using braided sleeving. For example:

http://cpc.farnell.com/1/1/184-braided-s...-ffr3.html

Of course, a bit of heat-shrink is needed at both ends to stop it fraying. Or you can fold it in on itself and tie-wrap it, or you can heat the ends to melt them together. I use this stuff a lot, and like it.

I don't expect that an overall screen is necessary, but the audio line obviously should be screened from the adjacent conductors. The braided screening on the video cable linked above does look a bit frail, but you'd have to test it - obviously the circuit impedances will dictate the amount of pick-up that you'll get.

Mark, that cable from Kenable would be ideal, but, as you say, finding someone who will sell me a couple of metres of it might be difficult. In the meantime I've put a length of braided sleeving on a CPC order (didn't know they stocked it!), and may make up a cable. The outer screen was no doubt necessary, since this is a valved car radio originally powered by a vibrator PSU mounted, with the o/p stage, in a seperate box, the screen forming the earth connection between head unit and amplifier.