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← 01A
Rolling Candidates to replace 01A
Small Signal Triode — DHT — UX4
⚠ Safety
Drop-In Replacements
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201A
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UX201A
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301A
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401A
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CX201A
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VT-30
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CV750
Top 10 Picks
00A
drop-in
5V
⚠ Low Pa
UX112A
adapter
5V
⚠ Low Pa
12A
adapter
5V
⚠ Low Pa
Rolling Candidates (17)
i
Heater:
1.4V
0
1.5V
0
2V
0
2.5V
0
3.3V
0
4V
0
5V
0
●
6.5V
0
7V
0
7.5V
0
show all (10)
Fit:
Drop-in
0
Adapter
0
Status:
⚠ Low Pa
17
0 shown (target 5V only)
▣ Compact
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Show candidates on other heater voltages (9 additional)
Generated 2026-04-09
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