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Vacuum Tube Audio Forum
Tube technology may be old but lives on in some of the best audio systems. Learn and share experiences from other lovers of tube amplifiers and other manner of devices.
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Identifying KT90 tubes
pstrisik
May 23, 2014
Replies
4
Views
9K
May 24, 2014
pstrisik
K
Effect Of Rectifier Tubes on A Phono Preamp's Sound
kleinbje
May 17, 2014
Replies
7
Views
6K
May 19, 2014
kleinbje
K
Tube Advice: 7788 (E810F)
jazdoc
Apr 10, 2014
Replies
6
Views
6K
Apr 10, 2014
jazdoc
Z
EAT Tubes vs. NOS Tubes
zermatt
Jun 19, 2012
8
9
10
Replies
187
Views
87K
Mar 20, 2014
mep
M
Tube Testing in Seattle
Grooves
Feb 24, 2014
Replies
6
Views
7K
Mar 11, 2014
thedudeabides
Ceramic metal triodes
ack
Feb 12, 2014
Replies
18
Views
8K
Feb 16, 2014
Don Hills
D
Re-Living My Past (OTL Vacuum Tube Builds)
Mark (Basspig) Weiss
Mar 5, 2012
2
Replies
21
Views
15K
Feb 16, 2014
Mark (Basspig) Weiss
B
From Chinese to German Elrog tubes
Bushikai
Feb 12, 2014
Replies
0
Views
3K
Feb 12, 2014
Bushikai
B
Tubes for Hovland
Pierre
Jan 12, 2014
Replies
3
Views
3K
Jan 27, 2014
Mendel
M
M
BAT VK.75 first timer
MCLSOUND
Nov 11, 2013
2
Replies
20
Views
17K
Dec 31, 2013
Btselect
B
M
NOS Tung-Sol 6550s??
mep
Oct 21, 2013
Replies
5
Views
7K
Oct 23, 2013
Mendel
M
Counted Out Too Soon?
MylesBAstor
Sep 11, 2013
Replies
11
Views
5K
Oct 18, 2013
Bill Hart
Vacuum Tube Valley
MylesBAstor
Sep 3, 2013
Replies
10
Views
9K
Oct 17, 2013
dminches
S
Where is a Crosley Vacuum Tube Date Code Reference website out there or info___ HELP
Subspiderman
Oct 6, 2013
Replies
0
Views
2K
Oct 6, 2013
Subspiderman
S
Ever Wonder What Ever Happened to those Reject Tubes????
MylesBAstor
Sep 11, 2013
Replies
3
Views
3K
Sep 30, 2013
c1ferrari
P
Northern Electric KT88
pnp
Sep 25, 2013
Replies
3
Views
5K
Sep 27, 2013
pnp
P
Anyone Speak German?
MylesBAstor
Sep 21, 2013
Replies
5
Views
3K
Sep 22, 2013
MylesBAstor
For the Tube Lover that has Everything!
MylesBAstor
Sep 11, 2013
Replies
12
Views
6K
Sep 18, 2013
bachrocks1685
B
I bought a tube amplifier
Shaffer
Sep 12, 2013
Replies
0
Views
2K
Sep 12, 2013
Shaffer
KT-150 a reality? Are they a drop in replacement for KT-120's ? ...
joeinid
Aug 21, 2013
Replies
4
Views
6K
Aug 21, 2013
mbskeam
N
Mullard EL37 Matched Pair
NamVet
Aug 4, 2013
Replies
0
Views
2K
Aug 4, 2013
NamVet
N
Tubes to be Again Made in the US
MylesBAstor
Jul 23, 2013
Replies
6
Views
4K
Jul 23, 2013
JackD201
Some Amperex History
MylesBAstor
Jul 21, 2013
Replies
0
Views
3K
Jul 21, 2013
MylesBAstor
I Have A Tube Flash
Fred
Jan 4, 2011
2
Replies
26
Views
20K
Jul 15, 2013
tdh888
Are tube designs still evolving, or have all circuits effectively been invented?
ack
Apr 13, 2012
2
3
4
Replies
64
Views
31K
Jul 6, 2013
cnpope
C
Anyone have experience with different brands of EL34's?
MadFloyd
Jun 4, 2013
Replies
5
Views
5K
Jun 6, 2013
MadFloyd
Psvane TII series CV181-TII/12AX7-TII
mauidan
Apr 23, 2013
Replies
4
Views
6K
May 25, 2013
Bill Demars
5751's
defride
May 21, 2013
Replies
9
Views
5K
May 22, 2013
microstrip
S
What's the life span of vavles (KT120)
SpiralTrance
May 4, 2013
Replies
6
Views
9K
May 4, 2013
Andre Marc
S
Do valve amps need to be played at full volume?
SpiralTrance
May 4, 2013
Replies
3
Views
2K
May 4, 2013
Andre Marc
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