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← 2C50
Rolling Candidates to replace 2C50
Small Signal Triode — Octal
⚠ Safety
Top 10 Picks
12B4A
adapter
12.6V
✓ Safe
12SN7WGT
adapter
12.6V
✓ Safe
12BH7
adapter
12.6V
⚠ Low Pa
12CG7
adapter
12.6V
⚠ Low Pa
7105
adapter
12.6V
⚠ Low Pa
ECC802S
adapter
12.6V
⚠ Low Pa
12SX7
adapter
12.6V
⚠ Low Pa
ECC82
adapter
12.6V
⚠ Low Pa
12AV7
adapter
12.6V
⚠ Low Pa
12AZ7
adapter
12.6V
⚠ Low Pa
Rolling Candidates (100)
i
Heater:
2.5V
0
3.6V
0
4.2V
0
6.3V
25
7V
0
8.4V
0
9V
0
12.6V
2
●
13V
0
16.5V
1
17.5V
0
19V
0
25V
1
show all (13)
Fit:
Drop-in
0
Adapter
2
Status:
✓ Safe
29
⚠ Low Pa
71
2 shown (target 12.6V only)
▣ Compact
⚙ Thresholds filter
12.6V Heater
(2 candidates)
Tube
Status ↑
Pa
Ah
Fit
12B4A
✓ Safe
5.5
W
0.3
adapter
12SN7WGT
✓ Safe
5
W
0.3
adapter
Generated 2026-04-09
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