• 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
J
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Phase splitter and balance input
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2
Views
1K
807tubenut
807tubenut
rsumperl
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Amplifier input
Replies
5
Views
917
Arnulf
A
L
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Cool looking tubes anyone...
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6
Views
2K
kstagger
kstagger
A
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300B/EL156 Amp
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4
Views
4K
kstagger
kstagger
G
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BoM for an RH84 mono build?
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1
Views
2K
TheGimp
TheGimp
S
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Dead Time - Correcting for it
Replies
44
Views
6K
leadbelly
leadbelly
C
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Need help identifying this amp...
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6
Views
1K
ethermion
E
B
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cannot locate documentation on SCA 9190 receiver
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1
Views
2K
bpasok
B
807tubenut
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Looking for a 866a powersupply schematic
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19
Views
9K
807tubenut
807tubenut
alexmoose
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The Maggie factor
Replies
10
Views
3K
Wavebourn
Wavebourn
rsumperl
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Am I correct????
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1
Views
927
Wavebourn
Wavebourn
A
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Stereo Pententometer Questions
Replies
3
Views
1K
Abinder1771
A
M Gregg
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  • Poll Poll
Best line stage tube?
Replies
319
Views
55K
M Gregg
M Gregg
K
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E810F/7788 Pinout name/number?
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4
Views
2K
kegger
K
A
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Zener heater regulator
Replies
18
Views
3K
jan.didden
jan.didden
gaffer
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my first attempt
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20
Views
4K
gaffer
gaffer
G
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ARC Power source+ 12AX7&12AU7 Pre-amplifier
Replies
10
Views
3K
gxcnabin
G
mr2racer58
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Audio Research SP3a
Replies
22
Views
8K
jackinnj
jackinnj
whitelabrat
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PTC Thermistor for auto fixed bias
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4
Views
1K
Wavebourn
Wavebourn
I
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Updating my amps....and "hello" :-)
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3
Views
1K
kevinkr
kevinkr
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