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← KT170
KT170 — Candidate to replace following?
Beam Tetrode — Octal
⚠ Safety
Top 10 Picks
KT120
drop-in
6.3V
✓ Close
KT150
drop-in
6.3V
✓ Close
6L6
drop-in
6.3V
✓ Safe
6P3S
drop-in
6.3V
✓ Safe
KT63
drop-in
6.3V
✓ Safe
Your Tube
Base:
Octal
Heater:
6.3V / 1.85A
Type:
beam tetrode
gm:
14
mA/V
Ia:
155
mA
Pa:
85
W
Vs:
225
V
Pinout (Octal)
ia
h
a
g2
g1
nc
h
k
Candidates to replace (5)
Fit:
Drop-in
5
Adapter
0
Status:
✓ Close
2
✓ Safe
3
5 shown
▣ Compact
⚙ Thresholds filter
6.3V Heater
(5 candidates)
Tube
Status ↑
Pa
Ah
Fit
KT120
✓ Close
60
W
-29%
1.8
drop-in
KT150
✓ Close
70
W
-18%
1.75
drop-in
6L6
✓ Safe
19
W
-78%
0.9
drop-in
6P3S
✓ Safe
19
W
-78%
0.9
drop-in
KT63
✓ Safe
11
W
-87%
0.7
drop-in
Generated 2026-04-09
Status legend →
User Guide →
target +
0
selected
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