May I assume that's a Bosch -016 AMM, used with LH2.4 Jetronic? I've seen several of these units fail with intact hot wire, and actually never have seen one with a broken hot wire, thus I would expect you'd find plenty of duds with a wire ready to test and use.

However, I also understand you may be wanting to do this for academic reasons, and are not just looking for a DIY fix on the unit. I gave a try once, at finding a way to restore these, having had some success with the LH2.0 predecessor to the -016, but found the newer electronics beyond my access. What I could do was swap the sensor pod between the housings, containing the hot wire, thermistor, and resistor to prove the symptom followed the electronics.

Or are you working this angle because because duds are just not available in Oz?






--
Art Benstein near Baltimore

"I was worried that my mechanic might try to rip me off, I was relieved when he told me all I needed was turn-signal fluid."