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Audio and Video Talk
The Vintage Audio Section
Quad 33 restoration
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<blockquote data-quote="mygoggie" data-source="post: 936713" data-attributes="member: 18916"><p>I was checking on the pots drying and something made me look twice at the volume pot. It just look wrong compared to images I was browsing on the www.</p><p></p><p>Yep, this is not original! It is not a switching type and of very poor quality. Ai ai ai. Now I understand why the knob is also different. Obviously the original one broke and was replaced. The original knob did not fit on the new pot's shaft and was replaced with the plastic one as shown above.</p><p></p><p><img src="https://i.postimg.cc/j2G2pYLT/volume-knob-incorrect-value.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p></p><p>The plastic shaft of the replacement pot was cut with a knife to make a flat surface!</p><p></p><p><img src="https://i.postimg.cc/LsTqnW0k/volume-pot-with-carved-shaft.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>I looked in my old suitcase of radio parts and I found an 1MΩ one from my old radio building days. I do not think that high value will work in this circuit.</p><p></p><p>So, off I am to find the correct replacement pot as well.</p></blockquote><p></p>
[QUOTE="mygoggie, post: 936713, member: 18916"] I was checking on the pots drying and something made me look twice at the volume pot. It just look wrong compared to images I was browsing on the www. Yep, this is not original! It is not a switching type and of very poor quality. Ai ai ai. Now I understand why the knob is also different. Obviously the original one broke and was replaced. The original knob did not fit on the new pot's shaft and was replaced with the plastic one as shown above. [IMG]https://i.postimg.cc/j2G2pYLT/volume-knob-incorrect-value.jpg[/IMG] The plastic shaft of the replacement pot was cut with a knife to make a flat surface! [IMG]https://i.postimg.cc/LsTqnW0k/volume-pot-with-carved-shaft.jpg[/IMG] I looked in my old suitcase of radio parts and I found an 1MΩ one from my old radio building days. I do not think that high value will work in this circuit. So, off I am to find the correct replacement pot as well. [/QUOTE]
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Audio and Video Talk
The Vintage Audio Section
Quad 33 restoration
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