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← 19AU4
Rolling Candidates to replace 19AU4
Rectifier — Octal
⚠ Safety
Drop-In Replacements
✓
19AU4GTA
Top 10 Picks
Rolling Candidates (93)
i
Heater:
2.5V
2
3.3V
0
4V
0
5V
2
6.3V
5
7.5V
0
10V
0
12.6V
0
16.8V
0
19V
1
22.4V
1
25V
1
Fit:
Drop-in
1
Adapter
11
Status:
✓ Close
8
✓ Safe
4
⚠ Close, low Pa
48
⚠ Low Pa
33
12 shown
▣ Compact
⚙ Thresholds filter
2.5V Heater
(2 candidates)
i
Tube
Status ↑
Pa
Ah
Fit
836
✓ Close
—
5
adapter
866A
✓ Safe
—
5
adapter
5V Heater
(2 candidates)
i
Tube
Status ↑
Pa
Ah
Fit
673
✓ Safe
—
10
adapter
872A
✓ Safe
—
7.5
adapter
6.3V Heater
(5 candidates)
i
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
19V Heater
(1 candidates)
i
Tube
Status ↑
Pa
Ah
Fit
19DE3
✓ Close
9
W
0.6
adapter
22.4V Heater
(1 candidates)
i
Tube
Status ↑
Pa
Ah
Fit
22DE4
✓ Close
6.5
W
0.45
drop-in
25V Heater
(1 candidates)
i
Tube
Status ↑
Pa
Ah
Fit
25DK3
✓ Safe
9
W
0.45
adapter
Generated 2026-04-09
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