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9th November 2008, 09:16 PM
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#1 |
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diyAudio Member
Join Date: Feb 2003
Location: West Coast of Norway
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6463-12b4a srpp?
Posted this on AA, but did not receive any answer yet.
I am doing some thinking about doing a linestage consisting of 1/2 6463 and 1 12b4a in a srpp config. Bring on comments  Is it doable, smart or not smart?Have some of these tubes laying around you see... PSU is delivering between 250v-280v Will scetch out a circuit in some days I guess. Sincerely |
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12th November 2008, 12:31 PM
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#2 |
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diyAudio Member
Join Date: Feb 2003
Location: West Coast of Norway
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Ok folks.
Since I am a truly beginner when it comes to circuit designs, feedback and advice would be appreciated. What do you think of this design? It is the first version. 6463 is almost the same as 5687. BTW. I came across a circuit called the "mini monkey" which seems a bit interesting. It is mentioned in this thread Serious case of brain fry. You out there Thorsten? Schematic is here: http://www.diyaudio.com/forums/attac...amp=1170462812 So, do I really need the grid resistor (910ohm) from the 6463 to 12b4? Sincerely |
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12th November 2008, 01:23 PM
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#3 |
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diyAudio Member
Join Date: Feb 2003
Location: West Coast of Norway
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BTW. The psu I am using is a tube regulated (ecl82) from AN. It is supposed to be quite good, and I am therefore thinking about an ultrapath connection.
This article got me thinking http://www.tubecad.com/2008/08/blog0147.htm Sincerely |
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14th November 2008, 04:15 AM
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#6 |
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diyAudio Member
Join Date: Jan 2005
Location: Chicago
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What is the plate choke doing?
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