6KN6-PP-guitar slave - diyAudio
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Old 21st March 2009, 06:48 PM   #1
davorin is offline davorin  Croatia
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Default 6KN6-PP-guitar slave

Halo! Have anybody experience with 6KN& or 42KN6 tubes? I just finished PP guitar "slave" amplifier, with fantastic sound and plenty of power (~28V/8 ohms at start of clipping=~100W RMS; ~23V/8 oms=70W RMS with ~2%THD).
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Old 21st March 2009, 07:15 PM   #2
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Here is schematic (hand draw).
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Old 22nd March 2009, 07:30 AM   #3
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Old 22nd March 2009, 09:21 AM   #4
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Not bad at all! Great to see some sweeps make music

How is the cooling done? Straight convection?

Cheers!
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Old 22nd March 2009, 10:44 AM   #5
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Yes, but finally plan is mount amp in 19´rack/box with fans (also with pre-amp, noise-gate, hall-effect and main voltage conditioner).
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Old 22nd March 2009, 12:18 PM   #6
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Very good sir!

I would suggest though a computer PS fan in there maybe, just incase it's operated outside the rack (portability for gigs/remote recording) or main fan failure.

Cheers!
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Old 23rd March 2009, 05:50 AM   #7
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Yes, good idea, but I must find very slim model of fun (max 15mm).
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Old 23rd March 2009, 06:48 AM   #8
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Good usage of RCA sockets.

Thanks for sharing!
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Old 23rd March 2009, 05:31 PM   #9
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OT, "home made" have 1760 t/primary for 2Kohms(4x440t/0,40mmCuEW), and 78t/secondary(1,50mmCuEW)for 4ohms plus 34t for 8ohm(1,25mmCuEW), all in same direction.
P1_P2_S1+S2_P3_P4
Start P1 to anode1; end P1 to start P3; end P3 to +340V
Start P2 to +340V; end P2 to start P4; end of P4 to anode2
Start S1 to ground; end S1 to start S2 and to 4ohms output; end S2 to 8ohms output
Iron: EI-type(40mm) and 50mm tall (S=20cmcm/br; S~18cmcm/nt)
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Old 23rd March 2009, 05:49 PM   #10
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