Forums https://www.decware.com/cgi-bin/yabb22/YaBB.pl AUDIO FORUMS >> General Discussion and Support >> changing a 5Y3GT tube for 5U4GT https://www.decware.com/cgi-bin/yabb22/YaBB.pl?num=1312614354 Message started by nico on 08/06/11 at 08:05:53

Title: changing a 5Y3GT tube for 5U4GT Post by nico on 08/06/11 at 08:05:53 Not familiar with tubes yet.... :-[ My Zen came with the 5Y3GT rectifier tube, and some spare tubes including a 5UGT. Info on the net says they are the same, but pin-layout is different. When interchanging these tubes, do I need to alter wire- hookup on the connector? Thanks, Nico

Title: Re: changing a 5Y3GT tube for 5U4GT Post by Rivieraranch on 08/06/11 at 12:50:59 I think you are referring to a 5U4G or 5U4GB. Either one of these will interchange as a drop in substitute for the 5Y3.

Title: Re: changing a 5Y3GT tube for 5U4GT Post by nico on 08/14/11 at 13:58:41 Forgot to say Thanks! ;) By now the riddle of why the 5U4G did not fit at first, is solved. [wrong transformer mounting]. I read alot about the MULLARD GZ 32 , anyone here who can tell the difference between my Sovtek5U4G and the Mullard? Does changing the rectifier really make such a difference in sound? Any comments are appreciated. Nico

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