• 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
ray_moth
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Does a cathode bypass capacitor reduce hum?
Replies
23
Views
10K
Sch3mat1c
Sch3mat1c
percy
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Understanding OPT primary Z and load matching.
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4
Views
3K
jlsem
jlsem
N
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help with Optomal placement of output transformers.
Replies
5
Views
2K
SY
SY
Magura
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Anyone know what this is?? Strange tube/ bulb.
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16
Views
3K
Sch3mat1c
Sch3mat1c
L
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50h B26
Replies
3
Views
4K
fdegrove
fdegrove
T
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Looking for schematics CROFT OTL APPARITION
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4
Views
4K
fdegrove
fdegrove
percy
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The Next Step. (and budget tube amplifier kits/designs).
Replies
15
Views
6K
planet10
planet10
Franz G
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Opamp as tube driver: Protection ideas?
Replies
5
Views
2K
moamps
moamps
G
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Alps pots vs. TKD pots? TKD worth the extra$$?
Replies
11
Views
22K
Variac
Variac
zix
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physical layout of 6B4G PP amp?
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20
Views
9K
zix
zix
R
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High Voltage Reference
Replies
9
Views
3K
Gary P
Gary P
T
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Noob Question on Driver Stages
Replies
2
Views
2K
Sch3mat1c
Sch3mat1c
2
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ISO (new Tango) info...
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0
Views
3K
2slow4u
2
D
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want to make otl with 6 tung-sol 6336a
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9
Views
4K
day
D
M
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DIY valve amp
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3
Views
2K
Bas Horneman
Bas Horneman
M
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12v tube output stage for cs43122 based dac?
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10
Views
6K
mbcouple
M
M
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regarding to the design of iron-cored inductors (chokes)
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3
Views
2K
jackinnj
jackinnj
lawbadman
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Trying to find an amp
Replies
1
Views
2K
SHiFTY
SHiFTY
B
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Motorboating in leak 20
Replies
5
Views
3K
ray_moth
ray_moth
A
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RCA tubes, need info
Replies
4
Views
2K
Colt45
C
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