• 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
A
Musical Fidelity X10D schematic
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103
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89K
Tazzo1
T
T
Carbon Film Resistor for plate load?
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70
Views
3K
Chris Hornbeck
Chris Hornbeck
M
Mystery EL84
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13
Views
553
mdr30
M
jhstewart9
2A3 SE DC Amp Built in Cruciform Style
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6
Views
585
bondini
bondini
B
Vacuum State RTP3C
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964
Views
309K
Eliad
E
N
Huaji Audio 6P14P (EL84) + 6N1P PP amp kit build #2
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91
Views
6K
Never Get Old
N
A
Phase Inverter and Volume Control advice needed
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5
Views
179
allears
A
merlin el mago
Thomas Mayer IT Lundahl 1660 10mA question
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18
Views
665
triode_al
triode_al
S
Rectifier tube ringing audibly externally
Replies
41
Views
1K
baudouin0
B
MarkC568
Dynaco ST-35 Hum in One Channel
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22
Views
586
MarkC568
MarkC568
S
Rogue Cronus Magnum II Hum
Replies
0
Views
92
streetcore
S
B
807 tube amplifier build
Replies
18
Views
952
Miles Prower
Miles Prower
D
Building my first tube amplifier Lowering B+
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17
Views
681
aliarifat794
A
D
Thordarson Transformer info
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1
Views
137
distortionhead
D
P
New Tung Sol 6550 vs KT120 vs KT150 Sonic Comparison
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40
Views
2K
gabdx
G
A
Help by using Lundahl LL1689 for line output
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4
Views
522
TNT
TNT
J
Power Transformer - Can you use separate tap for screens?
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24
Views
4K
catalin gramada
C
T
Music Angel XD-SE EL34B... yes, nother one.
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10
Views
2K
Spinspin69
S
D
adjustable LP equalization network for tube preamp phono stage
Replies
71
Views
2K
waltube
waltube
TonyTecson
8045G power triode
Replies
41
Views
10K
zintolo
Z
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