Thread: Tube ID
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Old 04-23-2020, 07:12 AM
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timmy timmy is offline
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On a 5u4 rectifier tube the plate terminals are 4-6 this set had a 5u4 in it but numbers 3-5 have the ac so a 5u4 may only work on one side so is there another rectifier tube that uses 3-5 ? It may be the 5x4 since I don't have the right SAMs. Ok here's a weird update the transformer has output on 3-5 but the filiment source is 2-8 but the 5x4 the filiment is 7-8 so both these tubes won't work unless a jumper is put in place, so I don't know what's going on here I don't think there is another tube that would have 3-5 for the plate and 2-8 for the filiment.

Last edited by timmy; 04-23-2020 at 07:51 AM.
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