• 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
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FunKenya Chinese 300B Monoblocks
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44
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6K
PeteAugello
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E
Pioneer PD-S703 DAC conversion
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0
Views
111
e00rica
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P
Sunbuck 2A3 monoblocks
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7
Views
891
freon2
F
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Headphone amplifier using 4P1L - my version of DHT filament power supply
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4
Views
406
dariusbv
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J
Can you use a 5VDC Power Supply and wire 2A3 Filaments in series?
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12
Views
740
grovergardner
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F
Basic Tube Amp Question....Or Holy H...! what's that Squeal!
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15
Views
484
Freecrowder
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stephe
Reisong A12 review
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101
Views
27K
Pashka
Pashka
T
Custom Output Transformer
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4
Views
425
DrowningNotWaving
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Marshall JCM 900 Reverb Issues
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3
Views
340
nodnarb
N
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thermistor for D3As to stop heater glow/flash
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16
Views
643
Hearinspace
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PP47 finally pushing and pulling
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15
Views
2K
Tom Bavis
Tom Bavis
DrDyna
Switching to individual tube bias - A couple of basic questions.
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15
Views
399
jcalvarez
jcalvarez
dubadub
Save your Transformer, always use an Artificial Center Tap on your heater windings...
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13
Views
877
wg_ski
W
Jaytor
Allen Wright's Tube Preamp Cookbook
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31
Views
5K
EC8010
EC8010
Citizen124032
Tube specs variation %
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27
Views
952
Citizen124032
Citizen124032
DrDyna
MosFET in driver tube cathode?
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20
Views
785
DrDyna
DrDyna
S
RCA SA-1000 bridging amplifier
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15
Views
542
silvaup4
S
J
Bill Beard BB101 - Service Manual
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0
Views
141
jospt
J
G
KT88 + 6SL7 Single Ended Schematic Info Needed
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9
Views
2K
kubrock
K
F
Plate transformer that doesn’t vibrate?
Replies
27
Views
759
nerdorama
nerdorama
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