©2011
WOO
AUDIO
tm
Inc.
All
rights
reserved.
www.wooaudio.com
Rev
1.0.
June
10,
2011.
11
Compatible Tubes
Model#
Adapter
Comment
D
riv
er
/P
o
w
er
6DE7
No
6CY7
No
WA6
‐
SE
shipped
prior
April
17,
2010
is
not
compatible.
6EW7
No
6EM7
Yes
A
8
‐
pin
to
9
‐
pin
adapter
is
needed.
6DR7
No
WA6
‐
SE
shipped
prior
April
17,
2010
is
not
compatible.
6DN7
Yes
A
8
‐
pin
to
9
‐
pin
adapter
is
needed.
6FD7
No
WA6
‐
SE
shipped
prior
April
17,
2010
is
not
compatible.
6SN7
Yes
For
WA6
only.
A
8
‐
pin
to
9
‐
pin
adapter
is
needed.
5692
Yes
For
WA6
only.
A
8
‐
pin
to
9
‐
pin
adapter
is
needed.
R
ec
tifier
5U4G
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
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
No
Indirectly
Heated
GZ33
No
Indirectly
Heated
GZ34
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