• 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
hooman
Protection of EL84
Replies
11
Views
1K
Depanatoru
D
S
Melody PM 845
Replies
8
Views
892
spippolone
S
wrenchone
A Leap of Faith...
Replies
61
Views
4K
wrenchone
wrenchone
A
JJ 300B supplier in the UK
Replies
2
Views
410
Alex M
A
dubadub
Help me understand? 10kHz square wave thru my SE amp
Replies
88
Views
7K
6A3sUMMER
6
bondini
90 years of tube porn?
Replies
4
Views
2K
Mark Tillotson
M
ygg-it
Mu-follower vs two-triode stage in single ended amplifier with 12AX2-6N2P (PoC)
Replies
0
Views
324
ygg-it
ygg-it
tgreese
Pilot 610 project
Replies
1
Views
647
kb2wyl
K
Smithdoor
TV in 1927
Replies
9
Views
999
Smithdoor
Smithdoor
S
vintage Nordmende output transformer
Replies
23
Views
2K
mickeymoose
M
asilker
filaments: SNR values for AC/DC?
Replies
1
Views
322
6A3sUMMER
6
S
Can we add amp meter in fixed bias tube smp?
Replies
11
Views
920
supernut
S
waltube
Air Tight ATC1 preamp
Replies
0
Views
316
waltube
waltube
Jonpaul
Recreation first analog to digital with 1942 Thyratron tubes
Replies
3
Views
529
OldHector
OldHector
Miniwatt
Output impedance measurement - without load?
Replies
77
Views
6K
JMFahey
JMFahey
ampexperts
Seeburg PA4-L6 Schematic Needed--Broke Tube Socket Had to Replace!
Replies
6
Views
454
rayma
rayma
F
PP output transformer sanity check
Replies
10
Views
681
50AE
50AE
T
Suggestions for Improvement?
Replies
22
Views
1K
benchbaron
benchbaron
N
Elekit TU-8100 project
Replies
42
Views
2K
Steve Morley
S
F
ISO NC20F good for tubes with 10k plate resistance?
Replies
1
Views
308
sser2
S
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