Rolling Candidates to replace 13D1

Small Signal Triode — Octal

Drop-In Replacements

✓ 25SN7GT✓ CV423✓ 1633 ✓ 7N7

Top 10 Picks

Rolling Candidates (103)

Heater:

Fit:

Status:18 shown

6.3V Heater(13 candidates)

Tube	Status ↑	Pa	Ah	Fit
6SN7	✓ Close	5W	0.6	drop-in
367A	✓ Close	—	0.3	adapter
6BX7	✓ Safe	10W	1.5	drop-in
ECC32	✓ Safe	5W	0.95	drop-in
6CK4	✓ Safe	12W	1.25	adapter
EL84	✓ Safe	12W	0.76	adapter
6BL7	✓ Safe	10W	1.5	adapter
6S4A	✓ Safe	8.5W	0.6	adapter
6AH4	✓ Safe	7.5W	0.75	adapter
6N7	✓ Safe	5.5W	0.8	adapter
ECC31	✓ Safe	5W	0.95	adapter
ECC99	✓ Safe	5W	0.8	adapter
ML6	✓ Safe	5W	0.7	adapter

8.4V Heater(1 candidates)

	Tube	Status ↑	Pa	Ah	Fit
	8BQ5	✓ Safe	12W	0.45	adapter

12.6V Heater(2 candidates)

	Tube	Status ↑	Pa	Ah	Fit
	12SN7WGT	✓ Close	5W	0.3	drop-in
	12B4A	✓ Safe	5.5W	0.3	adapter

15V Heater(1 candidates)

	Tube	Status ↑	Pa	Ah	Fit
	PL84	✓ Safe	12W	0.3	adapter

33V Heater(1 candidates)

	Tube	Status ↑	Pa	Ah	Fit
	UEL84	✓ Safe	12W	0.1	adapter

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