This web-page is the only one that can answer every question that you can possibly have concerning the TWC.
Myself together with Tommy Wahlström (deceased) constructed the TWC-regulator.
You are welcome with questions and opinions.
Regulator 1 can be repaired. Unfortunately not 2 and 3.
|TWC-regulator version 1
||TWC-regulator version 2
Made in Japan by Clarion.
|TWC-regulator version 3|
also named HPR
(Hella Power Regulator)