Tube cross-reference

6AL5 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 6AL5 diode (not rectifier). Compare core specifications and verify every restriction before using a replacement.

Replacement tubes for 6AL5

The following tubes are recorded as possible replacements for 6AL5. This direction does not establish that 6AL5 can replace them.

6B32

Rectifier - Full Wave

Foreign To American

The database records 6B32 as a possible replacement for6AL5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Diode (NOT rectifier)	Rectifier - Full Wave
Construction	Diode-Diode	Diode-Diode
Base	E7-1	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

6D2

Diode (NOT rectifier)

Foreign To American

The database records 6D2 as a possible replacement for6AL5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

D77

Diode (NOT rectifier)

Foreign To American

The database records D77 as a possible replacement for6AL5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	B7G
Socket	B7G	Not recorded
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

DD6

Diode (NOT rectifier)

Foreign To American

The database records DD6 as a possible replacement for6AL5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	Not recorded
Socket	B7G	Not recorded
Base pins	7	Not recorded
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

EAA901S

Diode (NOT rectifier)

Foreign To American

The database records EAA901S as a possible replacement for6AL5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

EAA91

Diode (NOT rectifier)

Foreign To American

The database records EAA91 as a possible replacement for6AL5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

EB91

Diode (NOT rectifier)

Foreign To American

The database records EB91 as a possible replacement for6AL5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	MINIATURE
Socket	B7G	B7G
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

5726

Diode (NOT rectifier)

Receiving To Industrial Tubes

The database records 5726 as a possible replacement for6AL5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	E7-1
Socket	B7G	B7G
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

6058

Diode (NOT rectifier)

Receiving To Industrial Tubes

The database records 6058 as a possible replacement for6AL5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	6BT
Socket	B7G	B7G
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

6097

Diode (NOT rectifier)

Receiving To Industrial Tubes

The database records 6097 as a possible replacement for6AL5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	Not recorded
Socket	B7G	IO
Base pins	7	8
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

6663

Diode (NOT rectifier)

Receiving To Industrial Tubes

The database records 6663 as a possible replacement for6AL5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.15 A

6AL5W

Diode (NOT rectifier)

Receiving To Industrial Tubes

The database records 6AL5W as a possible replacement for6AL5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	9M
Socket	B7G	B7G
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

7631

Diode (NOT rectifier)

Receiving To Industrial Tubes

The database records 7631 as a possible replacement for6AL5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	Not recorded

6EB5

Diode (NOT rectifier)

Receiving Tubes

The database records 6EB5 as a possible replacement for6AL5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	6BT
Socket	B7G	Not recorded
Base pins	7	9
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

Where 6AL5 can be used as the replacement

In these recorded relationships, 6AL5 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6AL5.

6B32

Rectifier - Full Wave

American To Foreign

The database records 6AL5 as a possible replacement for6B32.

No special restrictions are recorded for this substitution.

Specification	6AL5 replacement	Original tube
Tube type	Diode (NOT rectifier)	Rectifier - Full Wave
Construction	Diode-Diode	Diode-Diode
Base	E7-1	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

6D2

Diode (NOT rectifier)

American To Foreign

The database records 6AL5 as a possible replacement for6D2.

No special restrictions are recorded for this substitution.

Specification	6AL5 replacement	Original tube
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

D77

Diode (NOT rectifier)

American To Foreign

The database records 6AL5 as a possible replacement forD77.

No special restrictions are recorded for this substitution.

Specification	6AL5 replacement	Original tube
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	B7G
Socket	B7G	Not recorded
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

DD6

Diode (NOT rectifier)

American To Foreign

The database records 6AL5 as a possible replacement forDD6.

No special restrictions are recorded for this substitution.

Specification	6AL5 replacement	Original tube
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	Not recorded
Socket	B7G	Not recorded
Base pins	7	Not recorded
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

EAA91

Diode (NOT rectifier)

American To Foreign

The database records 6AL5 as a possible replacement forEAA91.

No special restrictions are recorded for this substitution.

Specification	6AL5 replacement	Original tube
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

EB91

Diode (NOT rectifier)

American To Foreign

The database records 6AL5 as a possible replacement forEB91.

No special restrictions are recorded for this substitution.

Specification	6AL5 replacement	Original tube
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	MINIATURE
Socket	B7G	B7G
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

6663

Diode (NOT rectifier)

Communications And Special Purpose Tubes

The database records 6AL5 as a possible replacement for6663.

No special restrictions are recorded for this substitution.

Specification	6AL5 replacement	Original tube
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.15 A

6EB5

Diode (NOT rectifier)

Receiving Tubes

The database records 6AL5 as a possible replacement for6EB5.

No special restrictions are recorded for this substitution.

Specification	6AL5 replacement	Original tube
Tube type	Diode (NOT rectifier)	Diode (NOT rectifier)
Construction	Diode-Diode	Diode-Diode
Base	E7-1	6BT
Socket	B7G	Not recorded
Base pins	7	9
Sections	2	2
Heater voltage	6.3 V	6.3 V
Heater current	0.3 A	0.3 A

Verify before substituting

Matching a base or heater voltage is not enough to prove that two tubes are interchangeable. Check pin connections, heater current, maximum ratings, bias requirements, warm-up behavior, and the equipment manufacturer’s service documentation before making a substitution.

View the complete 6AL5 specifications →