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← EL51
EL51 — Candidate to replace following?
Power Pentode — B8A
⚠ Safety
Top 10 Picks
EL6
drop-in
6.3V
✓ Safe
EL50
drop-in
6.3V
✓ Safe
Your Tube
Base:
B8A
Heater:
6.3V / 1.9A
Type:
power pentode
gm:
11
mA/V
ra:
33,000
Ω
Ia:
95
mA
Pa:
45
W
Vs:
500
V
Cgp:
1.5
pF
Pinout (B8A)
nc
h
h
k
g3
g1
g2
nc
a
Candidates to replace (2)
Fit:
Drop-in
2
Adapter
0
Status:
✓ Safe
2
2 shown
▣ Compact
⚙ Thresholds filter
6.3V Heater
(2 candidates)
Tube
Status ↑
Pa
Ah
Fit
EL50
✓ Safe
18
W
-60%
1.35
drop-in
EL6
✓ Safe
18
W
-60%
1.2
drop-in
Generated 2026-04-09
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selected
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