Parts · Transistors

2N3704

Si NPN BJT.2 circuits use this part.

Substitutes Si 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
2N3704	300	30 V	800 mA	0.36 W	100 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2N3415	180	25 V	500 mA	0.36 W		1
ECG123A	200	40 V	800 mA	0.5 W	300 MHz	1
2SC1852	160	50 V	1000 mA	0.625 W	100 MHz	1
2SD1616A	135	60 V	1000 mA	0.75 W	100 MHz	1
S8050	120	25 V	500 mA	0.3 W	150 MHz	1
TIS92	100	40 V	400 mA	0.625 W		4
BC337	100	45 V	800 mA	0.36 W	60 MHz	25
2N3569	100	40 V	500 mA	0.3 W	60 MHz	3

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2SC2982C	300	30 V	2000 mA	0.5 W	150 MHz
BCW65C	250	32 V	800 mA	0.35 W	100 MHz
BCW65RC	250	32 V	800 mA	0.35 W	100 MHz
BCW65CLT1	250	32 V	800 mA	0.3 W	100 MHz
BCW73-40	250	32 V	800 mA	0.45 W	100 MHz
2N5420	250	25 V	500 mA	0.4 W	100 MHz
2SC6134	250	30 V	3000 mA	0.5 W
BCW66H	250	45 V	800 mA	0.35 W	100 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	Fjord Fuzz Berserk V1 Vero15×12 Verified 2N3704 · 2N4123 · BC549 Fjord Fuzz Berserk V1	Fjord Fuzz Berserk V1	Fuzz	Dirtbox Layouts	—	3	—	20
	Roger Mayer Noisegate 2N3704 · 2N3707 · 2N3820 · 2N4058	—	Noise Gate	Experimentalists Anonymous	—	3	—	54