• 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
E
Hybrid Circlotron question
Replies
44
Views
3K
vilfort
vilfort
K
2A3 Amplifier with interstage Tango NC-15
Replies
4
Views
702
Michael C
M
R
(naïve) Question about this phase inverter circuit
Replies
10
Views
388
ejp
E
C
Lower My B+ Help
Replies
12
Views
507
6A3sUMMER
6
canercacan
Converting Grundig TK145 to Amplifier
Replies
13
Views
386
canercacan
canercacan
Windcrest77
Some quick questions on Zen Decware EL84 SET schematic
Replies
82
Views
27K
Solvt
S
P
PL36 (triode) SE
Replies
106
Views
34K
alnico
A
S
Wee bit of help identifying what caps are what
Replies
4
Views
172
vinylkid58
vinylkid58
E
Luxman SQ38u
Replies
6
Views
349
rayma
rayma
kevinkr
A Stereo 6N6P Hybrid Line stage w/Parafeed Output Transformer
Replies
97
Views
13K
kevinkr
kevinkr
Roadbagger
6BX7 There is sound and then there is the sound of sound
Replies
14
Views
781
Roadbagger
Roadbagger
Bas Horneman
"Torpedo" headphone amp clone build + streamer in one
Replies
32
Views
1K
Bas Horneman
Bas Horneman
P
Low Voltage (60V) Stereo Tube Amplifier for Dummies (2+2W)
Replies
150
Views
78K
smoking-amp
smoking-amp
Windcrest77
Schematic needed for a PP driver stage that has no phase splitter
Replies
19
Views
925
dubadub
dubadub
opnly bafld
Laochen/Oldchen 845-A 3 pairs of trim pots help
Replies
2
Views
287
opnly bafld
opnly bafld
Bas Horneman
Building parafeed EL84 DC 2A3 amp
Replies
157
Views
15K
ggetzoff
ggetzoff
6
6J1 China preamp thoughts
Replies
288
Views
213K
pathway
pathway
S
Bad startup crackle
Replies
11
Views
365
hooman
hooman
jkojic
Dynaco SCA35 - having an output transformer rewound - should i do both?
Replies
9
Views
638
Kolarkar auido
Kolarkar auido
N
6P14/EL84 amplifier kit building questions - before I build - maybe during if I do
Replies
282
Views
23K
Never Get Old
N
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