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← 56
56 — Candidate to replace following?
Small Signal Triode — UX5
⚠ Safety
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Equivalents
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Equivalents — Same Tube, Different Names
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CV611
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VT-56
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56A
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56S
Top 10 Picks
27
drop-in
2.5V
⚠ Low Pa
Your Tube
Base:
UX5
Heater:
2.5V / 1A
Type:
small signal triode
mu:
13.8
gm:
1.45
mA/V
ra:
9,500
Ω
Ia:
5
mA
Pa:
1.3
W
Cgp:
3.2
pF
Pinout (UX5)
h
a
g1
k
h
Candidates to replace (2)
Heater:
2.5V
0
●
6.3V
0
show all (2)
Fit:
Drop-in
0
Adapter
0
Status:
⚠ Close, low Pa
1
⚠ Low Pa
1
0 shown (target 2.5V only)
▣ Compact
⚙ Thresholds filter
No candidates match the selected filters.
Show candidates on other heater voltages (1 additional)
Generated 2026-04-09
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