• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Tubes / Valves

All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum
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Design Questions
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amirmk
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Hey Planet_10 (and others)
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gingertube
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how do i add adjustable bias on amp?
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skyraider
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dht p-p filament question
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enochRoot
enochRoot
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New amp project-some ideas of my own and looking for input from others...
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jsn
jsn
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very odd thing happening in my amp... help
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karma
karma
andyjevans
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Report - 2005 London HiFi Show
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amperex
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found two boxes of GE 6CL6 tubes
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Geek
Geek
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Can I mod this circuit to use 6922 tubes?
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amperex
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tube preamp kit question (again?)
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SY
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Geek
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3f4 spice models needed
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Geek
Geek
Shoog
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Back to Back transformers to get +B of 200V ??
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5
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billr
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Emphasising the transients, but making the mediocre listenable
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rick57
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Wire size for projects?
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anatech
anatech
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GM70 Power supply
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amperex
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Mains Transformer for EL34PP
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cerrem
cerrem
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ECC99 operating points?
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skyraider
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Preamp suggestions for a tube newbie
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Eli Duttman
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interstage convert to phase splitter
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skyraider
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Expensive Commercial Amps
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Majestic
Majestic
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