Parts · Transistors

2N706A

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
2N706A	20	15 V	200 mA	0.36 W	200 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
MPSA12	20	20 V	300 mA	0.33 W	125 MHz	13
SC206	16	20 V	100 mA	0.2 W	300 MHz	1
2N708	30	15 V	200 mA	0.36 W	300 MHz	2
2N5845	25	40 V	1000 mA	0.625 W	300 MHz	1
BF244	30	30 V	100 mA	0.3 W	170 MHz	3
ME9002	30	12 V		0.25 W	400 MHz	1
2N5129	35	12 V	500 mA	0.2 W	150 MHz	2
2N2369	40	15 V	200 mA	0.36 W	500 MHz	6

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2N919	20	15 V	220 mA	0.36 W	200 MHz
BSYP62	20	15 V	200 mA	0.36 W
2N784	20	15 V	200 mA	0.3 W	200 MHz
BSX89	20	15 V	500 mA	0.3 W	200 MHz
BSY26	20	15 V	100 mA	0.3 W	200 MHz
2N921	20	20 V	200 mA	0.36 W	200 MHz
BFX43	20	15 V	125 mA	0.36 W	250 MHz
2N3825	20	15 V	100 mA	0.25 W	200 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	Bigger Muff Vero19×17 Unverified 2N706A Bigger Muff	Bigger Muff	Distortion	Dirtbox Layouts	—	3	—	26