©2011
WOO
AUDIO
tm
Inc.
All
rights
reserved.
www.wooaudio.com
Rev
1.0.
June
9,
2011.
11
Compatible Tubes
Model#
Adapter
Note
Power
6080*
No
421A
No
Greater
power.
Western
Electric
branded.
5998
No
Greater
power.
6AS7
No
6H13C
No
6N5P
No
7236
No
Greater
power.
2399
No
6520
No
Driver
6SN7
*
/GT
/WGT
No
5692
No
6CG7
Yes
A
9
‐
pin
to
8
‐
pin
adapter
is
needed.
6F8G
Yes
A
8
‐
pin
to
8
‐
pin
adapter
with
Grid
wire
is
needed.
7N7
Yes
A
8
‐
pin
to
8
‐
pin
loctal
adapter
is
needed.
CV181
No
CV1988
No
ECC32
No
VT231
No
Rectifier
5U4G
*
/B
No
Directly
Heated
274A
Yes
Directly
Heated,
a
4
‐
pin
to
8
‐
pin
adapter
is
needed.
274B
No
Directly
Heated
53KU
No
Directly
Heated
5AR4
No
Indirectly
Heated
5AS4
No
Directly
Heated
5Z4
No
Indirectly
Heated
5R4
/GA
/GB
/GY
No
Directly
Heated
5U3C
No
Directly
Heated
5V4
/G
/GA
No
Directly
Heated
5Y3
No
Directly
Heated
5Z3
Yes
Directly
Heated,
a
8
‐
pin
to
8
‐
pin
adapter
is
needed.
GZ30
No
Indirectly
Heated
GZ32/33/34
No
Indirectly
Heated
GZ37
No
Indirectly
Heated
CV378
No
Indirectly
Heated
U52
No
Indirectly
Heated
U54
No
Directly
Heated
* The most current chart can be found in this document:
http://tinyurl.com/4wbv5qn