Well, the title basically asks the question,
What im up to this time, is repairing a piece of equipment, where i need to create a custom cable of sorts. Basically i need to put 2 75 ohm 2.8mm OD 2KV (at least) rated coax cables, together with 4 normal conductors into a single cable.
The coax isn't the problem, as i already know what will work. The question is, i would like to replace the 4 conductor ribbon cable that got destroyed, with 2 separate cables. The most convenient one for bundling the cable, is a 2.8mm OD shielded 110ohm cable.
The 4 conductors are for the fallowing:
+-15V power for an opamp.
Opamp Offset control cables (going to a pot that is more convenient to access, then where the amp is)
The question is, will the heightened capacitance of the shielded cable pose a problem with the amp offset correction, and if not, should i ground the shields, or leave them floating? (the connector happens to have a ground connector).
If this poses a problem, ill go for unshielded cables.