hichembell Posted October 4, 2019 Share Posted October 4, 2019 Before taking my line6 DT50 To a pro tech for biasing, I would like to collect some information first. checking on google and youtube, I have found a step by step guide to retube and bias a dt25 w combo: on another topic hee on line6 forum, it is explained that in order to bias a DT50 one needs to use a dual bias tester : "plug the bias tester probes into the power tube receptacles of the amp, then plug the tubes into the bias tester probes which look just like the bottom of a regular tube. Basically, the power tubes are plugged into the bias probe which is , in turn, plugged into the power tube receptacle (they are stacked on top of each other)" my question is: Does the DT 50 owns the same 3 holes for the test probe points and the hole for the bias adjustment like a DT25 or is it different in design, in this case, it is a must to use a dual bias tester to get it biased? In other words, does the DT50 combo has such probes and holes that enable to bias the amp without using a dual bias tester : I would like to inform you that I live In Algeria and there is no line6 shop or a line6 authorized repair, otherwise, I would directly take to such a repair center. My friend is a professional electronic. engineer. He already repaired my DT50 and already changed its power transformer in the past. So, i would like to collect for him all the info, describe the procedure to him so that he will do it for me thank you in advance. Quote Link to comment Share on other sites More sharing options...
psarkissian Posted October 4, 2019 Share Posted October 4, 2019 Please leave it to an authorized professional. Quote Link to comment Share on other sites More sharing options...
hichembell Posted October 4, 2019 Author Share Posted October 4, 2019 unfortunately, i would love to but there is no such a thing in Algeria Quote Link to comment Share on other sites More sharing options...
philtno Posted July 9, 2021 Share Posted July 9, 2021 Hi there, Have you received any clear answer to your question? I would like to change the valves of my DT50 HD.......DT50HD, not the combo, not the DT25......and i can't find where the probe ports are nor which one is V1 which one is V2 etc... Can you help? Tahnks a lot in advance Philtno Quote Link to comment Share on other sites More sharing options...
psarkissian Posted July 9, 2021 Share Posted July 9, 2021 See my response on your other post. Quote Link to comment Share on other sites More sharing options...
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