337alant
Negatively Biased
I used to use Deltron Plugs, and still do for everything but speaker connectors, they are very good and will take up to a 3.5mm dia soldered cable.
But the actual contact area in a 4mm socket is about 50% with the spring bar on one side and the 3.8mm plug on the other side there is a visible gap around 50% of the circ.
The Z-plugs are actually 4.1mm but spring loaded so you get 98% contact with a 4mm socket and they can take up to 6mm cable if you open them up a bit with the pointy nose pliers then crimp them down and solder them, finish with shrink wrap and they give a very tight neat looking connection IMHO
Alan
But the actual contact area in a 4mm socket is about 50% with the spring bar on one side and the 3.8mm plug on the other side there is a visible gap around 50% of the circ.
The Z-plugs are actually 4.1mm but spring loaded so you get 98% contact with a 4mm socket and they can take up to 6mm cable if you open them up a bit with the pointy nose pliers then crimp them down and solder them, finish with shrink wrap and they give a very tight neat looking connection IMHO
Alan