Parts · Transistors

2SA798

Si PNP BJT.1 circuit uses this part.

Substitutes Si PNP 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
2SA798	250	50 V	100 mA	0.4 W	50 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2N3965	250	60 V	200 mA	0.36 W	50 MHz	3
2N5087	250	50 V	50 mA	0.31 W	40 MHz	171
2N4250	250	40 V	100 mA	0.2 W	100 MHz	1
BC307B	240	45 V	100 mA	0.3 W	130 MHz	6
BC560B	240	45 V	100 mA	0.5 W	150 MHz	4
BC557B	200	45 V	100 mA	0.5 W	75 MHz	6
2SA1048GR	200	50 V	150 mA	0.2 W	80 MHz	2
2SA493	200	40 V	50 mA	0.2 W	100 MHz	3

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2N3964	250	45 V	200 mA	0.36 W	50 MHz
BFW22	250	45 V	100 mA	0.36 W	50 MHz
BFW23	250	60 V	100 mA	0.36 W	50 MHz
2N4025	250	60 V	200 mA	0.5 W	50 MHz
2N4019	250	45 V	200 mA	0.6 W	50 MHz
2N4020	250	45 V	200 mA	0.6 W	50 MHz
2N4023	250	45 V	200 mA	0.6 W	50 MHz
2N4021	250	60 V	200 mA	0.6 W	50 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	Korg MS50 071 · 072 · 14069 · 2SA733K Korg MS50 Filter	Korg MS50 Filter	Ring Mod / Synth	Experimentalists Anonymous	—	—	—	577