I would like to wire up some solid-core CTs for Iotawatt.
For the cable, I’m using a 0.5m long 3.5mm to 3.5mm TRS stereo plug cable which I will cut in half, to create two cables.
First question, I wanted to confirm - using a butt connector and crimping onto a component lead (e.g. for the TVS diode) is a big no-no, right? (Context - I don’t trust my soldering skills as it’s been a while).
I saw the NASA wiring standards guide mentions:
Crimping of solid wire, component leads, or stranded wire that has been solder-tinned, is prohibited.
However, I wasn’t sure if this was just NASA being held to higher standards, or if it was completely frowned upon practice for any electronics? (I assume it’s due to mechanical stresses, and the chance of breakage at the joint, right? Because you can’t displace solid wire/component leads like you can with stranded wire? Or is there another reason?)
Second question - does polarity matter here for the 3.5mm cable to the CT?
I assume I wire from the T and R of the 3.5mm cable to the yellow and black cable on the CT - does it matter which one to which?
And does it matter which leg you put the TVS diode on?