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← 6W4
Rolling Candidates to replace 6W4
Rectifier — Octal
⚠ Safety
Drop-In Replacements
✓
6W4GT
✓
6W4GTA
✓
CV732
Top 10 Picks
6EC4
adapter
6.3V
✓ Close
6AU4
adapter
6.3V
✓ Close
6BE3
adapter
6.3V
✓ Close
6CG3
adapter
6.3V
✓ Close
6CJ3
adapter
6.3V
✓ Close
6AX4
adapter
6.3V
✓ Safe
6V3
adapter
6.3V
✓ Safe
6BJ3
adapter
6.3V
⚠ Close, low Pa
5852
adapter
6.3V
⚠ Close, low Pa
5993
adapter
6.3V
⚠ Close, low Pa
Rolling Candidates (93)
i
Heater:
2.5V
4
3.3V
0
4V
0
5V
2
6.3V
7
●
7.5V
0
10V
1
12.6V
2
16.8V
1
18.9V
1
19V
1
22.4V
1
25V
2
show all (13)
Fit:
Drop-in
0
Adapter
7
Status:
✓ Close
15
✓ Safe
7
⚠ Close, low Pa
39
⚠ Low Pa
32
7 shown (target 6.3V only)
▣ Compact
⚙ Thresholds filter
6.3V Heater
(7 candidates)
Tube
Status ↑
Pa
Ah
Fit
6EC4
✓ Close
11
W
2.1
adapter
6AU4
✓ Close
6.5
W
1.8
adapter
6BE3
✓ Close
6.5
W
1.2
adapter
6CG3
✓ Close
6.5
W
1.8
adapter
6CJ3
✓ Close
6.5
W
1.8
adapter
6AX4
✓ Safe
5
W
1.2
adapter
6V3
✓ Safe
—
1.75
adapter
Generated 2026-04-09
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