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← 12SX7
Rolling Candidates to replace 12SX7
Small Signal Triode — Octal
⚠ Safety
Drop-In Replacements
✓
12SX7GT
✓
12SN7GT
✓
12SN7GTA
✓
1633
✓
CV3697
✓
6SN7GT
✓
6SN7GTA
✓
6SN7GTB
✓
6SN7W
✓
VT-231
Top 10 Picks
12SN7WGT
drop-in
12.6V
✓ Close
B36
drop-in
12.6V
⚠ Close, low Pa
12CG7
adapter
12.6V
✓ Close
12B4A
adapter
12.6V
✓ Safe
Rolling Candidates (105)
i
Heater:
2.5V
0
3.6V
0
3.8V
0
4.2V
0
6.3V
23
7V
1
8.4V
3
9V
0
12.6V
8
●
13V
0
15V
1
17.5V
0
19V
0
25V
1
33V
1
show all (15)
Fit:
Drop-in
1
Adapter
7
Status:
✓ Close
11
✓ Safe
27
⚠ Close, low Pa
12
⚠ Low Pa
55
8 shown (target 12.6V only)
▣ Compact
⚙ Thresholds filter
12.6V Heater
(8 candidates)
Tube
Status ↑
Pa
Ah
Fit
12SN7WGT
✓ Close
5
W
0.3
drop-in
12CG7
✓ Close
3.5
W
0.3
adapter
12B4A
✓ Safe
5.5
W
0.3
adapter
2C50
✓ Safe
3.85
W
0.3
adapter
12BH7
✓ Safe
3.5
W
0.3
adapter
7105
✓ Safe
3.5
W
0.6
adapter
ECC802S
✓ Safe
3
W
0.15
adapter
ECC82
✓ Safe
2.75
W
0.15
adapter
Generated 2026-04-09
Status legend →
User Guide →
Rolling FAQ →
target +
0
selected
pick 1+ to compare
select 1+ candidate to compare
12BH7
adapter
12.6V
✓ Safe
ECC802S
adapter
12.6V
✓ Safe
ECC82
adapter
12.6V
✓ Safe
2C50
adapter
12.6V
✓ Safe
7105
adapter
12.6V
✓ Safe
12J5
adapter
12.6V
⚠ Close, low Pa