• 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
Jeb-D.
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Filament voltage and affect on Rp
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10
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5K
cerrem
cerrem
R
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The best bias point for KT88
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0
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3K
rossdt
R
Z
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12AX7A replacement
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7
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5K
Ryssen
Ryssen
alexmoose
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Who said it was a good idea to try pentode!
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19
Views
3K
diegot
diegot
N
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How to get a buffer with overdrive from a 12AX7 ?
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7
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4K
-_nando-_
N
S
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wanted RIAA schematic
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23
Views
10K
sam8888ysl
S
Gold_xyz
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All Electron Tubes Manufacturers
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14
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4K
Tubelab_com
Tubelab_com
sorenj07
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50W KT88 PP w/ NFB on Bonavolta
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11
Views
8K
sorenj07
sorenj07
S
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Help with a cathode coupled pentode driver?
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2
Views
2K
Tubelab_com
Tubelab_com
V
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Amp that has the biggest number of irons
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3
Views
2K
Brian Beck
Brian Beck
S
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Hammond vs. James?
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56
Views
12K
anatech
anatech
N
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6V6GT
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2
Views
2K
nafunga
N
porkchop61
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Edcor CXSE25-8-4K vs Hammond 1628SEA?
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3
Views
10K
porkchop61
porkchop61
croccodillo
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Input level
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3
Views
2K
rpapps
R
C
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Looking for nuvistor pre-amp preamp schematic please. 6CW4?
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5
Views
11K
mach1
mach1
C
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6AR6
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1
Views
4K
martinab2
M
aletheian
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Any TCJ Push-Pull Calculator users?
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1
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2K
Tubes4e4
Tubes4e4
R
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KT88 and push-pull ultra-linear
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4
Views
5K
pengboon
P
andyjevans
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Question on using glow tubes (v-regs)
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3
Views
2K
pengboon
P
M
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5692, the best?
Replies
37
Views
6K
anatech
anatech
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