• 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
P
Experiment with 12AU7 pre stage + CSS servo
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9
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859
jcalvarez
jcalvarez
D
What distortion do you emphasize/remove when tuning a tube amp?
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26
Views
2K
6A3sUMMER
6
A
HH Scott 121C help...
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5
Views
1K
6A3sUMMER
6
Q
10W+10W EL34+ECC83 single-ended Class A Stereo amplifier Kit wlx
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52
Views
22K
6A3sUMMER
6
Tibetan
Menno van der Veen Trans-10 Kit
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19
Views
1K
Tibetan
Tibetan
djn
PP OPTs on a SET amp???
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18
Views
1K
waltube
waltube
E
What am I doing wrong? (300B HF Boost)
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83
Views
5K
6A3sUMMER
6
jhstewart9
Typical 2A3 SE Amp PS Hum Interference
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10
Views
836
jhstewart9
jhstewart9
dvb projekt
Does the V1 position of the Mcintosh MC-2000 have any effect on the sound?
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3
Views
533
baudouin0
B
M
6SF5 Driving 6V6 SE
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13
Views
2K
markw51
M
I
Some questions on 805 Tubeamp circuit design and testing
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17
Views
2K
ivanwong
I
C
Croft Series X info
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50
Views
3K
banat
B
I
Missing Reverb Tank
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5
Views
596
baudouin0
B
T
LL1660 parafeed phase splitter?
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0
Views
246
Tjj226
T
L
Advice on DHT B+ Ripple magnitude?
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62
Views
3K
uptick
U
P
Imbalanced PI
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22
Views
1K
6A3sUMMER
6
bondini
Comparing the '01A and '30 - THD vs Vout
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16
Views
1K
bondini
bondini
bondini
Tracking down a cathode noise reference - Philips Journal of Research circa 1967
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10
Views
544
bondini
bondini
M
Tiny Speaker on a Gilmore JR?
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3
Views
437
rayma
rayma
PauliusT
300B line stage Mains transformer
Replies
27
Views
2K
PauliusT
PauliusT
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