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← ECC34
ECC34 — Candidate to replace following?
Small Signal Triode — Octal
⚠ Safety
Top 10 Picks
6SL7
drop-in
6.3V
✓ Safe
6SU7
drop-in
6.3V
✓ Safe
ECC33
drop-in
6.3V
✓ Safe
ECC35
drop-in
6.3V
✓ Safe
6BX7
drop-in
6.3V
⚠ Low Pa
6SN7
drop-in
6.3V
⚠ Low Pa
ECC32
drop-in
6.3V
⚠ Low Pa
Your Tube
Base:
Octal
Heater:
6.3V / 0.95A
Type:
small signal triode
mu:
11.5
gm:
2.2
mA/V
ra:
5,200
Ω
Ia:
10
mA
Pa:
3.25
W
Cgp:
4
pF
Pinout (Octal)
g1_2
a2
k2
g1_1
a1
k1
Candidates to replace (12)
Heater:
6.3V
4
●
12.6V
2
25V
1
show all (3)
Fit:
Drop-in
4
Adapter
0
Status:
✓ Safe
7
⚠ Low Pa
5
4 shown (target 6.3V only)
▣ Compact
⚙ Thresholds filter
6.3V Heater
(4 candidates)
Tube
Status ↑
Pa
Ah
Fit
6SL7
✓ Safe
1
W
-69%
0.3
drop-in
6SU7
✓ Safe
1
W
-69%
0.3
drop-in
ECC33
✓ Safe
2.5
W
-23%
0.4
drop-in
ECC35
✓ Safe
1.5
W
-54%
0.4
drop-in
Generated 2026-04-09
Status legend →
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0
selected
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