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DIY & Tutorials
DIY For Audio
Restoration of Philips B6X63A valve radio from 1956
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<blockquote data-quote="El Sid" data-source="post: 839366" data-attributes="member: 18550"><p>Random cool thing on this radio - there is a mechanical "graphic equaliser" which represents the frequency response - it moves the relevant end up or down as you adjust bass and treble:</p><p></p><p><img src="https://i.imgur.com/8AMO8RS.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Here it is looking from the back - the indicator is a spring that wants to go up, but is restrained by the string on the pot. as you adjust the pot, the string winds/unwinds about the shaft, pulling down/letting up the indicator. So cool and so simple. </p><p><img src="https://i.imgur.com/fvagLC2.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="El Sid, post: 839366, member: 18550"] Random cool thing on this radio - there is a mechanical "graphic equaliser" which represents the frequency response - it moves the relevant end up or down as you adjust bass and treble: [IMG]https://i.imgur.com/8AMO8RS.jpg[/IMG] Here it is looking from the back - the indicator is a spring that wants to go up, but is restrained by the string on the pot. as you adjust the pot, the string winds/unwinds about the shaft, pulling down/letting up the indicator. So cool and so simple. [IMG]https://i.imgur.com/fvagLC2.jpg[/IMG] [/QUOTE]
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DIY & Tutorials
DIY For Audio
Restoration of Philips B6X63A valve radio from 1956
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