John Morrison Posted April 13, 2021 Report Share Posted April 13, 2021 Hi all, quick question, are all Tr4A's Negative earth? John. Quote Link to post Share on other sites
ianc Posted April 13, 2021 Report Share Posted April 13, 2021 According to the wiring diagrams for all TR2 to TR6, which Pete Cox sent me many years ago, the answer is "Yes" - Negative earth. However, we know that at times of transition, some odd things escaped the factory! Ian Cornish Quote Link to post Share on other sites
stuart Posted April 13, 2021 Report Share Posted April 13, 2021 No not all, my 4a repatriated from the US was positive and Ive seen several others that were positive too. We have been down this question a few times over the years. Stuart. Quote Link to post Share on other sites
John Morrison Posted April 14, 2021 Author Report Share Posted April 14, 2021 Thats Triumph for you, never fail to surprise! Thanks Guys. John. Quote Link to post Share on other sites
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