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DIY & Tutorials
DIY For Audio
Guitar amp from Philips radio
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<blockquote data-quote="fredeb" data-source="post: 959934" data-attributes="member: 13623"><p>Why I ask , is because I've been wondering about the filament humdinger : 100 or 200 ohm potentiometer for AC filaments . </p><p></p><p>Or artificial centre tap to ground , or slightly above ground .</p><p></p><p><a href="http://www.valvewizard.co.uk/heater.html" target="_blank">http://www.valvewizard.co.uk/heater.html</a></p><p></p><p></p><p></p><p>My current phono project is using DC heaters , all I needed was to connect filament ground to HT ground , which still leaves me wondering about the AC filament fix . Do you perhaps want to try the humpot and see how well it works ?</p></blockquote><p></p>
[QUOTE="fredeb, post: 959934, member: 13623"] Why I ask , is because I've been wondering about the filament humdinger : 100 or 200 ohm potentiometer for AC filaments . Or artificial centre tap to ground , or slightly above ground . [url=http://www.valvewizard.co.uk/heater.html]http://www.valvewizard.co.uk/heater.html[/url] My current phono project is using DC heaters , all I needed was to connect filament ground to HT ground , which still leaves me wondering about the AC filament fix . Do you perhaps want to try the humpot and see how well it works ? [/QUOTE]
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DIY & Tutorials
DIY For Audio
Guitar amp from Philips radio
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