Parts · Transistors

102NU70

Ge NPN BJT TH.1 circuit uses this part.

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
102NU70	12		100 mA	0.05 W	0.5 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2N1302	20	25 V	300 mA	0.15 W	1 MHz	6
2N1101	25	15 V	100 mA	0.18 W	0.1 MHz	2
2SD77	40	25 V	100 mA	0.15 W	2 MHz	1
2N1304	40	20 V	300 mA	0.15 W	4 MHz	4
AC176	52	20 V	1000 mA	0.22 W	1 MHz	20
2N233	3	10 V	100 mA	0.15 W	2 MHz	1
AC130	50	15 V	100 mA	0.145 W	2 MHz	2
AC127	50	12 V	500 mA	0.34 W	1.5 MHz	15

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2N194	10	18 V	100 mA	0.05 W	1.2 MHz
2N211	10	10 V	50 mA	0.05 W	1.2 MHz
2N216	8	15 V	50 mA	0.05 W	1 MHz
2N587	20	30 V	200 mA	0.2 W
2N35	25	25 V	100 mA	0.05 W	0.4 MHz
2N356	20	18 V	500 mA	0.1 W	1 MHz
2SC89	20	15 V	400 mA	0.12 W	1 MHz
2SC89H	20	15 V	400 mA	0.12 W	1 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	NN Classic Fuzz 102NU70	—	Fuzz	Experimentalists Anonymous	—	—	—	10