Thank you its.
length of NR wire is 55 mm as usual
R wire is at 39mm
R= 1,5ohm
Sounds good enough. For Ithaka I use wire welder and 40mm of 0.5х0.1 ribbon kanthal - it gives around of 1.35 ohm resistance. But on video the non-resistant wire is ribbon too. Why? Round non-resistance wire looks more convenient

