• 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
B
Wanted: Balanced MuStage Tube Headphone Amp schematic
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1
Views
232
DrowningNotWaving
D
S
Audio League Report, Volumes 1 and 2 (1954)
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4
Views
622
oldphaser
O
O
2A3-40 PP with choke input PSU sounds so powerful!
Replies
38
Views
3K
trobbins
trobbins
duanestorey
Tube transformers for sale
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9
Views
513
duanestorey
duanestorey
Celsius
https://www.trioda.com/tools/triode.html is down?
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3
Views
438
UniQ
UniQ
V
Here we go again with that fake Marantz preamp clone...
Replies
9
Views
574
ejp
E
andyjevans
Using 6P15P in triode at 300V - suggestions?
Replies
24
Views
2K
Francois G
Francois G
M
SET cuts out when switched off
Replies
19
Views
478
OldHector
OldHector
dommii
Tube distortion 'effect'
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5
Views
369
dommii
dommii
M
Western Electric 375A tube experience?
Replies
2
Views
194
mctavish
M
SRMcGee
Can I Connect Two Transformers Together?
Replies
16
Views
889
6sX7
6
P
Sennheiser VKS 203
Replies
2
Views
115
basreflex
B
AKlein
Varying Cathode Bias voltage question
Replies
46
Views
2K
AKlein
AKlein
M
Switching power supply blinking start-up for tube heaters
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7
Views
237
jcalvarez
jcalvarez
M
Scrapbox 45 in 4 weeks!
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24
Views
715
mctavish
M
B
EL84SE with local NFB?
Replies
12
Views
412
bea
B
K.A.B
My Dynaco ST 35
Replies
50
Views
2K
K.A.B
K.A.B
koldby
Mactone MH-300b schematic or photo
Replies
81
Views
3K
koldby
koldby
ygg-it
RF Anode /plate parasitic choke for 12AX7 ECC83 input stage
Replies
7
Views
944
silvaup4
S
Fuling
Artistry vs. engineering, or: Are we just nuts?
Replies
102
Views
6K
Fuling
Fuling
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