Parts · Transistors

GT115D

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
GT115D	125		30 mA	0.05 W	1 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
SFT337	100	15 V	100 mA	0.15 W	1 MHz	3
2N508	120	16 V	200 mA	0.2 W	2 MHz	2
NTE102	90	16 V	150 mA	0.15 W	2 MHz	3
ASY33	90	30 V	300 mA	0.15 W	0.5 MHz	1
2SB22	95	25 V	75 mA	0.17 W	0.4 MHz	2
OC46	80	20 V	125 mA	0.083 W	2 MHz	1
2G381	75	20 V	500 mA	0.25 W	1 MHz	5
2SB54	80	20 V	150 mA	0.15 W	0.5 MHz	5

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2N1194	125	25 V	200 mA	0.2 W	1.2 MHz
ACY38VII	125	15 V	100 mA	0.15 W	1.5 MHz
2N535	100	20 V	20 mA	0.085 W	1 MHz
2N536	100	20 V	30 mA	0.085 W	1 MHz
OC613	90	15 V	100 mA	0.05 W	1 MHz
OC350	150	8 V	35 mA	0.06 W	0.6 MHz
2N1185	130	30 V	500 mA	0.2 W	1.4 MHz
2SA459	120	14 V	200 mA	0.15 W	2 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	Electric Talons GT115D · GT309B · LT1054 · LT1054CP Baldwin-Burns Buzzaround	Baldwin-Burns Buzzaround	Fuzz	Naegele Audio	—	4	—	29
	Sungrazer GT115D · GT115G · LT1054 · LT1054CP Monolith Oracle Fuzz	Monolith Oracle Fuzz	Fuzz	Naegele Audio	—	4	—	27