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DIY & Tutorials
DIY For Audio
EL84 amp concept
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<blockquote data-quote="El Sid" data-source="post: 934475" data-attributes="member: 18550"><p>Power supply testing with dummy loads drawing (roughly) the design quiescent current for all valves. B+ 348V, B++ 307V compared with 340/300 designed, so not bad. May just tweak it downwards slightly because during the one test the mains went as high as 245V and there was 360V on the B+</p><p></p><p><img src="https://i.imgur.com/QW12UYH.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="El Sid, post: 934475, member: 18550"] Power supply testing with dummy loads drawing (roughly) the design quiescent current for all valves. B+ 348V, B++ 307V compared with 340/300 designed, so not bad. May just tweak it downwards slightly because during the one test the mains went as high as 245V and there was 360V on the B+ [IMG]https://i.imgur.com/QW12UYH.jpg[/IMG] [/QUOTE]
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DIY & Tutorials
DIY For Audio
EL84 amp concept
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