• 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
CLC or CLCLC filtering
Replies
30
Views
5K
Miles Prower
Miles Prower
Freedom666
Simple OTL for beginners?
Replies
99
Views
7K
banat
B
Kmet
Tube stereo MPX decoder
Replies
52
Views
7K
Bluesystems
B
A
Audible Illusions Modulus 2c
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11
Views
480
stokessd
stokessd
gerrittube
Noisy 6SN7
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11
Views
542
isaacc7
I
R
Buzz increases with volume
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6
Views
285
Chris Hornbeck
Chris Hornbeck
F
AD1 PP driver
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63
Views
3K
filenet
F
Fuling
Opinions wanted on 300B SET design
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23
Views
880
Fuling
Fuling
gerrittube
Blown cathode resistors
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24
Views
763
gerrittube
gerrittube
M
Counterpoint SA 5.1
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334
Views
89K
anatech
anatech
C
Series vs parallel filaments
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14
Views
647
gorgon53
G
J
Question about Nobu Shishido 2A3 power supply...
Replies
5
Views
329
6A3sUMMER
6
wrenchone
6BM8 Mini-Amp
Replies
89
Views
7K
benchbaron
benchbaron
A
Tube Amplifier negative Bias Diode type ?
Replies
40
Views
2K
gorgon53
G
jkojic
AUDIO INSTITUTE VR70-E - bias setting do i need to buy a probe
Replies
2
Views
241
vinylkid58
vinylkid58
E
Heater impedance level impact ?
Replies
12
Views
643
Rod Coleman
Rod Coleman
D
Audio Research D70 MKII
Replies
42
Views
3K
Dilbert
D
A
Adapting EL84 Audio Note circuit to Hammond 1650E
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49
Views
16K
MauriceSG
M
U
electronic retailer to collect parts for RH84
Replies
19
Views
462
Fuling
Fuling
S
RF chokes in McIntosh MC240 and MC275?
Replies
35
Views
1K
anatech
anatech
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