• 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
R
The all DHT SET Headphone Amp
Replies
895
Views
187K
Michelag
M
S
Are these output transformers copper primary and silver secondary?
Replies
4
Views
418
50AE
50AE
T
Is anyone using 6C33C in CF to drive AB2
Replies
8
Views
491
artosalo
artosalo
P
Pads for recording pres
Replies
2
Views
271
rayma
rayma
rkoonce
Tube expert wanted for tube ID
Replies
11
Views
741
6A3sUMMER
6
Miniwatt
TV damper diode temperature question
Replies
2
Views
331
Miniwatt
Miniwatt
I
Dual power supply question.
Replies
5
Views
423
egellings
E
S
Elekit TU-8500 stock components vs exotic component upgrades
Replies
22
Views
3K
Steve Morley
S
SY
The Red Light District - another PP EL84 amp
Replies
1K
Views
304K
jakerollo
J
Dendrobium
Spudnik - high performance tube preamp & headphone amp
Replies
7
Views
1K
Dendrobium
Dendrobium
tubelectron
RIAA NFB : I don't remember... Please remind me ! ;)
Replies
1
Views
331
MarcelvdG
M
M
6V6 with and without FB (LTspice)
Replies
83
Views
6K
6A3sUMMER
6
noviygera
choosing a Tube input topology for Class D module
Replies
41
Views
3K
noviygera
noviygera
bananasplit_00
Can you determine impedance ratio of completely unknown transformer?
Replies
60
Views
6K
Tom Bavis
Tom Bavis
KDMAudio
6N13S/6AS7G PP Amplifier schematic
Replies
44
Views
6K
jhstewart9
jhstewart9
E
Interstage coupling cap replace or bypass?
Replies
140
Views
8K
Markw4
M
jhstewart9
Does Allen Wright's Cathode Bias Resister Scheme for IMD Reduction Work? Yes? No? Maybe!! Episode ll
Replies
3
Views
602
jhstewart9
jhstewart9
N
Ceramic socket problem
Replies
19
Views
1K
mdpaudio
M
S
Vintage Lyon and Healy Tube Amp
Replies
0
Views
261
Stewart77
S
L
Dyna MKIII blowing fuse at 90volts
Replies
48
Views
2K
rayma
rayma
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