• 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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help in finding tubetester meter value
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1
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anodedick
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Y
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Visit Shuguang tube factory(many pics)
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3
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2K
Sa da tay!
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Z
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811A tube internal resistance ?
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38
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Fuling
Fuling
kmj
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linestage needed
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8
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fdegrove
fdegrove
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Is there a no/gain preamplifier schematic using high-distortion EC90?
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6
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Eli Duttman
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H
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How do Sovtek 6L6WGCs stand up?
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8
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hacknet
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J
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Tube Safety
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7
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cogsncogs
cogsncogs
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PP 807's
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4
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Robert Morin
R
pingfloid
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Morgan Jones book to swap
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3
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billr
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S
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help with restoring amp
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10
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4K
Eli Duttman
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C
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6V6 SET amp with 6SN7 driver
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37
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20K
Eli Duttman
E
Alfetta87
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5687 Tube - best choice
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5
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12K
Alfetta87
Alfetta87
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Push Pull Power supply. to Tube or not to?
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24
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DrDeville
DrDeville
2
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801
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6
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3K
Brian Clark
Brian Clark
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Fisher 500c - Trouble shooting tuner section
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0
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ALBQ
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Is it Good to regulate supplies?
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21
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3K
Sch3mat1c
Sch3mat1c
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5687, ECC99, 7119, or E182CC??
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5
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5K
grataku
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M
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Taylor 45b Gm Problem
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0
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1K
mr keys
M
Fuling
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Mu-follower current capability?
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5
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4K
Fuling
Fuling
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Some questions about C4S CCS adjustment.
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11
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7K
G
G
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