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9th March 2011, 06:47 PM
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#1 |
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diyAudio Member
Join Date: Feb 2004
Location: South Wales
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6P21s 6n21c tube, True Direct Heater?
Anyone used this tube?
Is it any good? How did you run it, Triode/tetrode wired, etc... Also, Is it a 'true Directly-Heated' tube or is it unipot. cathode connected to heater...? Cheers! |
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10th March 2011, 06:25 PM
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#2 |
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diyAudio Member
Join Date: Feb 2004
Location: South Wales
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What, No one got one of these in their stash or used one....?
 Did a search here and there were only a couple of references to them.... 
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