Parts · Transistors

2N1304

Ge NPN BJT TH.4 circuits use this part.

Datasheet · archived copy from Central Semiconductor; the part is discontinued and the maker no longer publishes it

Substitutes Ge NPN transistor

Matched on material, polarity and the limits below from the transistor parameter database. Pinouts and packages are not in that data: check the datasheet before you drop one in, and expect gain to change the sound.

This part

Part	hFE min	Vce	Ic	Pc	fT
2N1304	40	20 V	300 mA	0.15 W	4 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2N388	60	20 V	200 mA	0.15 W	7 MHz	2
2N1306	60	15 V	300 mA	0.15 W	8 MHz	13
AC176	52	20 V	1000 mA	0.22 W	1 MHz	20
GT404B	60	25 V	500 mA	0.6 W	1 MHz	1
2N1308	80	15 V	300 mA	0.15 W	12 MHz	24
NTE103	90	16 V	250 mA	0.15 W	2 MHz	5
2N1302	20	25 V	300 mA	0.15 W	1 MHz	6
2SD352	100	30 V	1000 mA	0.6 W		2

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
NKT734	40	20 V	300 mA	0.15 W	4 MHz
2N1732	40	20 V	300 mA	0.15 W	5 MHz
2N1391	40	18 V	200 mA	0.15 W	3 MHz
2SC129	45	20 V	200 mA	0.15 W	4 MHz
2N1000	40	25 V		0.15 W	6 MHz
2N440	40	15 V	300 mA	0.1 W	5 MHz
2N1091	40	15 V	400 mA	0.12 W	6 MHz
2N377	35	20 V	200 mA	0.15 W	3 MHz

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
Supro 1304 Fuzz Vero16×13 Unverified 2N1304 · 2N5087 · 2N5088 Supro 1304 Fuzz	Supro 1304 Fuzz	Fuzz	Dirtbox Layouts	—	4	—	26
Super Bro FUZZ 2N1304 · 2N5087 · 2N5088 Supro 1304 Fuzz · 125B	Supro 1304 Fuzz	Fuzz	PCB Guitar Mania	125B	5	€9.90 out	29
Grease Box GB80 2N1304 DAM GB-80 GreaseBox	DAM GB-80 GreaseBox	Other	PCBWay: Glory to Ukraine	—	2	—	16
ReproFuzz 2N1304 · 2N5087 · 2N5088 Supro 1304 Fuzz · 125B	Supro 1304 Fuzz	Fuzz	PedalPCB	125B	5	$8.00	33