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Audio and Video Talk
Valves / Vacuum Tubes
Small vacuum tube integrated for desktop use
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<blockquote data-quote="handsome" data-source="post: 1120639" data-attributes="member: 772"><p>Bad news: 430V is way too high for 450V rated capacitors. Firstly the mains fluctuates and secondly at start up before the valves are warm, voltages will be way, way higher - more than 500V for sure. You will want to series-connect some 450V caps (you don't really get electrolytic caps rated higher than 450V) for reliability and decent lifespan, unfortunately this means twice as many caps… Flash caps were very popular in DIY amps many years ago because of their (rather large) capacities and of course availability - i cannot comment on their capabilities.</p><p></p><p>You should also pop some grid and screens stoppers on those power tubes….</p></blockquote><p></p>
[QUOTE="handsome, post: 1120639, member: 772"] Bad news: 430V is way too high for 450V rated capacitors. Firstly the mains fluctuates and secondly at start up before the valves are warm, voltages will be way, way higher - more than 500V for sure. You will want to series-connect some 450V caps (you don't really get electrolytic caps rated higher than 450V) for reliability and decent lifespan, unfortunately this means twice as many caps… Flash caps were very popular in DIY amps many years ago because of their (rather large) capacities and of course availability - i cannot comment on their capabilities. You should also pop some grid and screens stoppers on those power tubes…. [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Small vacuum tube integrated for desktop use
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