Kumbbl Posted January 13 Posted January 13 Hi all, I want to repair old LEGO 9V cables whose insulation has deteriorated, while the 2x2 connectors are still intact. There are videos online that explain quite well what needs to be done—how you can replace the cable without soldering, just by crimping. Unfortunately, most 0.14 mm² stranded wires have slightly thicker insulation than the old, almost rubber-like (probably silicone-based) original leads. The old LEGO 9V plugs aren’t classic crimp contacts anyway, but so-called IDC contacts (Insulation Displacement Connector). For these, the wire needs to be extremely soft and easy for the tiny blades to pierce. So my question to you all: has anyone done this successfully—and if so, do you have specific product recommendations for a suitable wire? Ideally product recommendations for such stranded wire that can be obtained in Germany, or at least within the EU? Thanks a lot in advance! BR Quote
Kumbbl Posted January 13 Author Posted January 13 yes you are right, i should switch my brain on before posting.... so sorry fopr the noise - and a big thank you vor the links, very helpful for getting the right product.... Quote
Toastie Posted January 13 Posted January 13 5 hours ago, Kumbbl said: yes you are right, i should switch my brain on before posting Well, generally true - however, the EB search "function" may not result in "on target" results; Google though generally does: Just search for "Eurobricks xyz" - no brain needed . I do that all the time, even when I try to find my own posts ... Nice that you got a prompt and exhausting reply from a very experienced member; this is the heart of EB! All the best and good luck with the repair! Thorsten Quote
Zerobricks Posted January 13 Posted January 13 7 hours ago, Kumbbl said: yes you are right, i should switch my brain on before posting.... so sorry fopr the noise - and a big thank you vor the links, very helpful for getting the right product.... No worries, sorry if I was a bit too harsh. Good luck with your fix, lets us know how it goes Quote
Kumbbl Posted January 14 Author Posted January 14 No worries, you were not too harsh… you were right ;-) Quote
Kumbbl Posted January 16 Author Posted January 16 The decisive success factor for a successful repair is using a highly flexible 24-AWG silicone ribbon cable. 24-AWG wires with PVC insulation are too stiff for the small IDC blades. With soft silicone insulation, however, it works well. About 4 out of 5 repair attempts are successful with this. so, great videos linked above… Quote
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