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6N1 preamplifier with phono
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<blockquote data-quote="Mars" data-source="post: 709440" data-attributes="member: 817"><p>Building something like this, is a bit of a sweat, but what worthwhile is't? </p><p></p><p>I think I have the CCDA under wraps. Changed the cathode resistor to 10K 5watt. Dissipation is 3.3watt, so the resistor heats up, but no discolouration or smoking! This preamp is a non-smoking zone! :2thumbs:</p><p></p><p>I measure 180V across the cathode resistor (of the cathode follower), so that means 18mA through the triode. This is just inside the max rating of 20mA as printed on the data sheet.</p><p></p><p>I also found a wiring error in the phono stage. No hiss any more. Time to get the LP's out!</p></blockquote><p></p>
[QUOTE="Mars, post: 709440, member: 817"] Building something like this, is a bit of a sweat, but what worthwhile is't? I think I have the CCDA under wraps. Changed the cathode resistor to 10K 5watt. Dissipation is 3.3watt, so the resistor heats up, but no discolouration or smoking! This preamp is a non-smoking zone! :2thumbs: I measure 180V across the cathode resistor (of the cathode follower), so that means 18mA through the triode. This is just inside the max rating of 20mA as printed on the data sheet. I also found a wiring error in the phono stage. No hiss any more. Time to get the LP's out! [/QUOTE]
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Commercial Members
Commercial Members - News & Discussion
6N1 preamplifier with phono
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