Parts · Transistors

CV7112

Ge NPN BJT TH.5 circuits use this part.

Substitutes Ge 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
ASY29	30	15 V	200 mA	0.15 W	10 MHz

The database does not list this number. The parameters and matches are those of the ASY29, its closest listed equivalent.

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2N1304	40	20 V	300 mA	0.15 W	4 MHz	4
2N1306	60	15 V	300 mA	0.15 W	8 MHz	13
2SD77	40	25 V	100 mA	0.15 W	2 MHz	1
2N388	60	20 V	200 mA	0.15 W	7 MHz	2
AC130	50	15 V	100 mA	0.145 W	2 MHz	2
2N1308	80	15 V	300 mA	0.15 W	12 MHz	24
2N1302	20	25 V	300 mA	0.15 W	1 MHz	6
AC127	50	12 V	500 mA	0.34 W	1.5 MHz	15

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
GT2906	30	15 V	300 mA	0.15 W	6 MHz
2SC85	30	12 V	200 mA	0.1 W	8 MHz
2N1730	30	15 V	300 mA	0.15 W	5 MHz
GT2765	30	20 V	100 mA	0.15 W	6 MHz
2N1996	35	15 V	300 mA	0.15 W	8 MHz
2N635	25	20 V	300 mA	0.15 W	10 MHz
2N636	35	20 V	300 mA	0.15 W	15 MHz
2N1993	30	18 V	300 mA	0.15 W	3 MHz

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
DAM Drag'n'Fly Perfboard Verified BC337 · CV7112 DAM Drag'n'Fly	DAM Drag'n'Fly	Fuzz	Effects Layouts (blog)	—	3	—	18
Red Rooster CV7112 DAM Red Rooster	DAM Red Rooster	Other	PCBWay: Glory to Ukraine	—	2	—	14
Chickenhead CV7112 DAM Red Rooster · 125B	DAM Red Rooster	Fuzz	PedalPCB	125B	2	$8.00	13
DAM Drag'n'Fly Vero14×9 Verified BC337 · CV7112 DAM Drag'n'Fly	DAM Drag'n'Fly	Fuzz	Tagboard Effects	—	3	—	17
DAM Red Rooster Turret board Verified CV7112 DAM Red Rooster	DAM Red Rooster	Boost	Tagboard Effects	—	2	—	13