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Audio and Video Talk
Valves / Vacuum Tubes
Valve microphonics
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<blockquote data-quote="Family_Dog" data-source="post: 857596" data-attributes="member: 82"><p>Very interesting, Sax! I used mainly Philips or Mullard valves during the construction of my 5-20 amps when I just built them for a hobby and although Mullard valves were fine, minimal (if any) microphonics, the Philips EF86 was notorious for producing terrible microphonics. A slight tap on the gl;ass case produced a rather hefty ringing thump from the loudspeaker. Brimar EF86 valves were fine, as good as the Mullards but I avoided Philips-manufactured EF86 valves after that.</p><p></p><p></p><p>-F_D</p></blockquote><p></p>
[QUOTE="Family_Dog, post: 857596, member: 82"] Very interesting, Sax! I used mainly Philips or Mullard valves during the construction of my 5-20 amps when I just built them for a hobby and although Mullard valves were fine, minimal (if any) microphonics, the Philips EF86 was notorious for producing terrible microphonics. A slight tap on the gl;ass case produced a rather hefty ringing thump from the loudspeaker. Brimar EF86 valves were fine, as good as the Mullards but I avoided Philips-manufactured EF86 valves after that. -F_D [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Valve microphonics
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