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← 27
Rolling Candidates to replace 27
Small Signal Triode — UX5
⚠ Safety
Drop-In Replacements
✓
UY-227
✓
227
✓
CX-327
✓
CV944
✓
VT-29
✓
3373
Top 10 Picks
56
drop-in
2.5V
⚠ Low Pa
Rolling Candidates (61)
i
Heater:
2.5V
0
●
6.3V
0
7V
0
8.4V
0
12.6V
0
25V
0
show all (6)
Fit:
Drop-in
0
Adapter
0
Status:
⚠ Low Pa
61
0 shown (target 2.5V only)
▣ Compact
⚙ Thresholds filter
No candidates match the selected filters.
Show candidates on other heater voltages (5 additional)
Generated 2026-04-09
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