Working with shielded teflon wire
Today I’ll try to explain how to work with the shielded teflon wire. Below is the step by step guide with photos. Click on a photo to see more details.
Note: don’t try to do this with PVC insulated wire as it’s likely that you’ll melt the insulation and short the shield with the center conductor.
That’s good info on how to use Teflon Wire in the shielded version.
How are you using this? In other words, when should I think about using shielded and grounded wire?
Shielded wire can help reduce noise, especially in the preamp section. When you have grounded shield around the conductor that carries the signal it will “absorb” outside noise that other components in the chassis make (transformers, other signal leads, AC wires, etc). Usually it’s grounded on the other side, but sometimes I use it to connect gain/volume pot to the closest grounding point. In that case it’s grounded on one end and connected to pot’s 3rd lug on the other. See my Black Box Preamp, there are some pix that show that.