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10th July 2006, 05:32 PM
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#1 |
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diyAudio Member
Join Date: Feb 2006
Location: Berlin
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6922 Heater - BIAS
Hi all,
i have implemented a voltage-divider in my WCF - Headphone - Amplifier (6922-Tubes) to bias the heaters at about 40V; connected to the center-tap of my Hammond 369EX (3,15 - 0 - 3,15V AC) Could i (in addition to that) also put a small cap from the heater-pins to ground in order to reduce noise or would that interfere with the circuit/heater bias? As a newbee, i'd appreciate any comments! regards, mickie |
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11th July 2006, 10:35 AM
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#4 |
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diyAudio Moderator
Join Date: Jan 2003
Location: Near London. UK
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If you have an oscilloscope to put on the heater pins to compare before and after, you'll be able to see why...
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The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference... |
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