• 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
J
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Sophia Electric EL34 Schematic
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50
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14K
Palustris
Palustris
T
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Differential push-pull design question
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4
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7K
Tyimo
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pjanda1
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Do swingers always buzz when they swing?
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2
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1K
Sch3mat1c
Sch3mat1c
JesseG
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True direct-coupled PP amp
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20
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7K
Sch3mat1c
Sch3mat1c
H
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Tube buffer/preamp. Where to place voltage divider?
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4
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3K
homemade
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beamnet
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GU 50 output modification
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22
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7K
mavallarino
mavallarino
Troncones
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Zenith 7B31 Help
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1
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2K
Troncones
Troncones
quasi
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Transformer needed or "solid state guy needs help from tube guys"
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9
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2K
pointy
pointy
MellowTone
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6DX8 Amp for Headphones and Low Volume Needs
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18
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7K
Arnulf
A
Molloy
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Chinese tubes, new ones or relabeled?
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3
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1K
sulcorebutia
S
Gluca
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Any EF184 users?
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10
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9K
Geek
Geek
T
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modified GEC 88-50
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0
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2K
troposnet
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B
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How do you determine a driver stage?
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16
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5K
godfrey
G
dsavitsk
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FFT of PSUD2 output?
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1
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822
iko
iko
S
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Subbing in a TVC - input load Q
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4
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1K
Steven-H
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N
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Need a good phono stage design..
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14
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11K
mlloyd1
mlloyd1
taj
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Lookin for an ST-70-like project
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41
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7K
taj
taj
B
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Tube rolling in the Triode Electronics 6au6/12au7 driver board
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2
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3K
Burnedfingers
B
Troncones
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Surplus Voltage Solution
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6
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1K
Troncones
Troncones
M
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Sub mini history question ...
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6
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2K
moonbird
M
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