Parts · Transistors

GT313A

Ge PNP BJT TH.2 circuits use this part.

Substitutes Ge 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
GT313A	20	15 V	30 mA	0.1 W	300 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
GT308A	20	12 V	150 mA	0.15 W	90 MHz	2
MP40	20	15 V	150 mA	0.15 W	1 MHz	1
MP16	20	15 V	20 mA	0.2 W	1 MHz	1
P416A	60	12 V	25 mA	0.1 W	60 MHz	1
MP39B	20	15 V	150 mA	0.15 W	0.5 MHz	5
OC41	35	16 V	50 mA	0.05 W	4 MHz	6
OC603	20	12 V	50 mA	0.08 W	0.25 MHz	1
2N1307	60	15 V	300 mA	0.15 W	8 MHz	6

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2SA372	20	15 V	200 mA	0.1 W	350 MHz
AC530	20	15 V	50 mA	0.125 W
2N960	20	15 V	100 mA	0.15 W	300 MHz
2N1450	20	20 V	100 mA	0.12 W
2N961	20	12 V	100 mA	0.15 W	300 MHz
2N962	20	12 V	100 mA	0.15 W	300 MHz
2N2273	20	15 V	100 mA	0.15 W	250 MHz
2N3127	20	20 V	50 mA	0.1 W	400 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	Apocalypse Audio Dirty Boots Version 5 Vero12×10 Verified GT313A Apocalypse Audio Dirty Boots Version 5	Apocalypse Audio Dirty Boots Version 5	Boost	Tagboard Effects	—	3	—	15
	Apocalypse Audio Dirty Boots Version 6 Vero16×10 Unverified GT313A Apocalypse Audio Dirty Boots V6	Apocalypse Audio Dirty Boots V6	Boost	Tagboard Effects	—	4	—	23