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← 6N3C
6N3C — Candidate to replace following?
Beam Tetrode — Octal
⚠ Safety
Jump to:
Equivalents
Your Tube
Top 10
Targets
Equivalents — Same Tube, Different Names
✓
6P3S
✓
6P3S-E
✓
6L6
✓
6L6G
✓
6L6GT
✓
6L6GA
✓
6L6GB
✓
6L6GC
✓
6L6WGB
✓
5881
✓
CV1286
✓
VT115
Top 10 Picks
6CD6G
drop-in
6.3V
✓ Close
6F6
drop-in
6.3V
✓ Safe
6K6
drop-in
6.3V
✓ Safe
6M6G
drop-in
6.3V
✓ Safe
Your Tube
Base:
Octal
Heater:
6.3V / 0.9A
Type:
beam tetrode
gm:
6
mA/V
ra:
25,000
Ω
Ia:
72
mA
Pa:
20
W
Vs:
250
V
Cgp:
1
pF
Pinout (Octal)
nc
h
a
g2
g1
nc
Candidates to replace (20)
Heater:
6.3V
9
●
12.6V
2
25V
1
show all (3)
Fit:
Drop-in
9
Adapter
0
Status:
✓ Close
1
✓ Safe
11
⚠ Close, low Pa
1
⚠ Low Pa
7
9 shown (target 6.3V only)
▣ Compact
⚙ Thresholds filter
6.3V Heater
(9 candidates)
Tube
Status ↑
Pa
Ah
Fit
6CD6G
✓ Close
15
W
-25%
2.5
drop-in
6F6
✓ Safe
10.5
W
-47%
0.7
drop-in
6F6S
✓ Safe
11
W
-45%
0.7
drop-in
6K6
✓ Safe
8.5
W
-57%
0.4
drop-in
6M6G
✓ Safe
9
W
-55%
0.9
drop-in
6P6S
✓ Safe
13.2
W
-34%
0.45
drop-in
6V6
✓ Safe
14
W
-30%
0.45
drop-in
6W6
✓ Safe
12
W
-40%
1.2
drop-in
6Y6
✓ Safe
12.5
W
-37%
1.25
drop-in
Generated 2026-04-09
Status legend →
User Guide →
target +
0
selected
pick 1+ to compare
select 1+ candidate to compare
6V6
drop-in
6.3V
✓ Safe
6W6
drop-in
6.3V
✓ Safe
6Y6
drop-in
6.3V
✓ Safe
6F6S
drop-in
6.3V
✓ Safe
6P6S
drop-in
6.3V
✓ Safe
KT66
drop-in
6.3V
⚠ Close, low Pa
h
k