TUBEOFILE
Search
Compare
FAQ
Tube+
Sign In
Sign In
☰
Loading...
← A2900
A2900 — Candidate to replace following?
Small Signal Triode — Noval
⚠ Safety
Jump to:
Equivalents
Your Tube
Top 10
Targets
Equivalents — Same Tube, Different Names
✓
ECC81
✓
12AT7
✓
CV4024
✓
CV455
✓
CV6091
✓
B152
✓
B309
✓
B739
✓
ECC801S
✓
E81CC
✓
6201
✓
6060
✓
E2157
✓
M8162
✓
M8136
Top 10 Picks
12AZ7
drop-in
12.6V
✓ Close
12AY7
drop-in
12.6V
✓ Safe
12BH7
drop-in
12.6V
⚠ Low Pa
ECC802S
drop-in
12.6V
⚠ Low Pa
Your Tube
Base:
Noval
Heater:
12.6V / 0.15A
Type:
small signal triode
mu:
60
gm:
5.5
mA/V
ra:
10,900
Ω
Ia:
10
mA
Pa:
2.5
W
Cgp:
1.5
pF
Pinout (Noval)
a2
g1_2
k2
h
h
a1
Candidates to replace (6)
Heater:
6.3V
0
12.6V
2
●
show all (2)
Fit:
Drop-in
2
Adapter
0
Status:
✓ Close
1
✓ Safe
1
⚠ Low Pa
4
2 shown (target 12.6V only)
▣ Compact
⚙ Thresholds filter
12.6V Heater
(2 candidates)
Tube
Status ↑
Pa
Ah
Fit
12AZ7
✓ Close
2.5
W
0.225
drop-in
12AY7
✓ Safe
1.5
W
-40%
0.15
drop-in
Generated 2026-04-09
Status legend →
User Guide →
target +
0
selected
pick 1+ to compare
select 1+ candidate to compare
ECC82
drop-in
12.6V
⚠ Low Pa
g1_1
k1
h