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← 8FQ7
8FQ7 — Candidate to replace following?
Small Signal Triode — Noval
⚠ Safety
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Equivalents
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Equivalents — Same Tube, Different Names
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8CG7
Top 10 Picks
Your Tube
Base:
Noval
Heater:
8.4V / 0.45A
Type:
small signal triode
mu:
20
gm:
2.6
mA/V
ra:
7,700
Ω
Ia:
9
mA
Pa:
3.5
W
Cgp:
4
pF
Pinout (Noval)
a2
g1_2
k2
h
h
a1
g1_1
k1
ia
Candidates to replace (13)
Heater:
6.3V
8
9V
1
12.6V
2
17.5V
1
19V
1
Fit:
Drop-in
13
Adapter
0
Status:
✓ Close
2
✓ Safe
11
13 shown
▣ Compact
⚙ Thresholds filter
6.3V Heater
(8 candidates)
i
Tube
Status ↑
Pa
Ah
Fit
6CG7
✓ Close
3.5
W
0.6
drop-in
6922
✓ Safe
1.5
W
-57%
0.3
drop-in
6/30L2
✓ Safe
2
W
-43%
0.3
drop-in
6BQ7A
✓ Safe
2
W
-43%
0.4
drop-in
6DJ8
✓ Safe
1.8
W
-49%
0.365
drop-in
CCa
✓ Safe
1.5
W
-57%
0.3
drop-in
ECC85
✓ Safe
2.5
W
-29%
0.435
drop-in
ECC88
✓ Safe
1.8
W
-49%
0.365
drop-in
9V Heater
(1 candidates)
i
Tube
Status ↑
Pa
Ah
Fit
PCC85
✓ Safe
2.5
W
-29%
0.3
drop-in
12.6V Heater
(2 candidates)
i
Tube
Status ↑
Pa
Ah
Fit
12CG7
✓ Close
3.5
W
0.3
drop-in
8416
✓ Safe
1.5
W
-57%
0.15
drop-in
17.5V Heater
(1 candidates)
i
Tube
Status ↑
Pa
Ah
Fit
HCC85
✓ Safe
2.5
W
-29%
0.15
drop-in
19V Heater
(1 candidates)
i
Tube
Status ↑
Pa
Ah
Fit
UCC85
✓ Safe
2.5
W
-29%
0.1
drop-in
Generated 2026-04-09
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