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Vinyl
Build Your Own Tube Amplifier - workshop in 2011
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<blockquote data-quote="Mars" data-source="post: 96243" data-attributes="member: 817"><p>Today I tested the power transformer.</p><p></p><p>I built a power supply: rectifier bridge - 47ohm - 50uF - 4H choke - 100uF - 1500ohm dummy load</p><p><img src="http://www.23hq.com/Marsamps/photo/6493829/original" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p><img src="http://www.23hq.com/Marsamps/photo/6493830/original" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>My mains measured at 227VAC</p><p><img src="http://www.23hq.com/Marsamps/photo/6493833/original" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>6.66 VAC on the filament tap</p><p><img src="http://www.23hq.com/Marsamps/photo/6493834/original" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>433 VDC on the dummy load</p><p><img src="http://www.23hq.com/Marsamps/photo/6493831/original" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>The transformer delivers about 368 VAC under load on the secondary side.</p></blockquote><p></p>
[QUOTE="Mars, post: 96243, member: 817"] Today I tested the power transformer. I built a power supply: rectifier bridge - 47ohm - 50uF - 4H choke - 100uF - 1500ohm dummy load [IMG]http://www.23hq.com/Marsamps/photo/6493829/original[/IMG] [IMG]http://www.23hq.com/Marsamps/photo/6493830/original[/IMG] My mains measured at 227VAC [IMG]http://www.23hq.com/Marsamps/photo/6493833/original[/IMG] 6.66 VAC on the filament tap [IMG]http://www.23hq.com/Marsamps/photo/6493834/original[/IMG] 433 VDC on the dummy load [IMG]http://www.23hq.com/Marsamps/photo/6493831/original[/IMG] The transformer delivers about 368 VAC under load on the secondary side. [/QUOTE]
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Audio and Video Talk
Vinyl
Build Your Own Tube Amplifier - workshop in 2011
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