Parts · Transistors

2SD667

Si NPN BJT.1 circuit uses 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
2SD667	60	80 V	1000 mA	0.9 W	70 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
MPSA06	50	80 V	500 mA	0.625 W	100 MHz	6
BC639	40	80 V	1000 mA	1 W	50 MHz	2
MPSA06G	100	80 V	500 mA	0.63 W	100 MHz	1
MPS-U05	60	60 V	2000 mA	10 W	170 MHz	1
2N3700	100	80 V	1000 mA	0.5 W	100 MHz	4
MPSA05G	100	60 V	500 mA	0.63 W	100 MHz	6
KSP42	40	300 V	500 mA	0.625 W	50 MHz	3
BD1396STU	40	80 V	1500 mA	12.5 W		1

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
BCX56-10	63	80 V	1500 mA	1 W	65 MHz
2SC560	60	60 V	800 mA	0.8 W	75 MHz
2N2989	60	80 V	1500 mA	1 W	50 MHz
BC367	60	80 V	1000 mA	1 W	50 MHz
BCX40-5	60	80 V	2000 mA	1 W	50 MHz
2N2405	60	90 V	1000 mA	1 W	50 MHz
BCX55-10	63	60 V	1500 mA	1 W	65 MHz
2N2990	60	100 V	1500 mA	1 W	50 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	Roland TR-606 2SB586 · 2SB647C · 2SC2021/2SA937 · 2SC945/2SA733 Roland TR-606	Roland TR-606	Ring Mod / Synth	Experimentalists Anonymous	—	8	—	659