General purpose low level, low noise amplifier. Silicon NPN transistor.

Surface mount MMBFJ201 JFET. Commonly used in place of the discontinued through-hole J201. These JFETs can be found in many effects pedals, synthesizers, and other projects. The MMBFJ201 is an N-Channel general purpose amplifier JFET. This device is designed primarily for low level audio and general purpose applications with high impedance signal sources.

The BC549 is a silicon general purpose NPN transistor in a TO-92 package. The BC549’s typical applications include signal processing, amplification, and switching. The BC549 is available in two different gain ranges: BC549B and BC549C. Type hFE (IC=2mA, VCE=5V) BC549B 200-450 BC549C 420-800

2N5088 NPN Bipolar Junction Transistor in TO-92 package

BC108 NPN silicon transistors. The BC108 is a popular NPN choice for fuzz pedals and other effects such as vintage silicon Fuzz Face builds and Big Muff clones. Type hFE (IC=2mA, VCE=5V) hfe (IC=2mA, VCE=5V, f=1KHz) BC108A 110-220 125-260 BC108B 200-450 240-500 BC108C 420-800 450-900

• NPN polarity
• Collector emitter breakdown voltage 25V
• Collector base breakdown voltage 30V
• Collector current 200mA
• Power 0.75W
• Transition frequency 150MHz
• TO-18 case
• Weight 0.35g

NPN Darlington transistor (TO-92 package) - designed for high gain, low noise general purpose amplifier applications.

• Max collector to emitter voltage = 45 V
• Max collector to base voltage = 45 V
• Max emitter to base voltage = 6.5 V
• Max collector current = 0.2 A (continuous)

General purpose low-power NPN bipolar junction transistor, used frequently in hobbyist electronic projects.

PF5102 N-Channel Switch (TO-92 package) - designed for low level analog switching, sample and hold circuits and chopper stabilized amplifiers.

• Max drain to gate voltage = 40 V
• Max gate to source voltage = -40 V
• Max forward gate current = 50 m

The 2N2222A is a NPN transistor in a TO-18 metal case. The 2N2222A is commonly used in fuzz pedals.

The BC184 is a general purpose NPN transistor in a TO-92 case. The BC184 is commonly used in fuzz pedals and has a reputation as a warm sounding silicon transistor for fuzz. BC184 was used in various Colorsound pedals - Jumbo Tone Bender, Supa Tone Bender, Power Boost, etc. It was also used in the Schaller Fuzz, and has been used in fuzz pedals from well-known builders such as Skreddy Pedals, D*A*M, and Stu Castledine.

BC109 NPN silicon transistors. The BC109 is a popular NPN choice for fuzz pedals and other effects such as vintage silicon Fuzz Face builds and Big Muff clones. Type hFE (IC=2mA, VCE=5V) hfe (IC=2mA, VCE=5V, f=1KHz) BC109B 200-450 240-500 BC109C 420-800 450-900

High quality TO package transistor sockets by Mill-Max. These machine pin sockets make swapping transistors in pedals and other projects a simple process. These use a standard TO footprint so they are ready for use on PCBs with matching footprints.

The BC183 is a general purpose NPN transistor in a TO-92 case. The BC183 is commonly used in fuzz pedals and has a reputation as a warm sounding silicon transistor for fuzz. The BC183 is available in three different gain ranges: BC183A, BC183B, and BC183C. Type hfe (IC=2mA, VCE=5V, f=1KHz) BC183A 125-260 BC183B 240-500 BC183C 450-900

The BC560 is a silicon general purpose PNP transistor in a TO-92 package. The BC560’s typical applications include signal processing, amplification, and switching.

General purpose low-power PNP bipolar junction transistor, used frequently in hobbyist electronic projects. For the NPN 2N3904 see P-Q2N3904

J113 N-Channel Switch (TO-92 package) - designed for low level analog switching, sample and hold circuits and chopper stabilized amplifiers.

• Max drain to gate voltage = 35 V
• Max gate to source voltage = -35 V
• Max forward gate current = 50 mA

The 2N4125 is a general purpose silicon NPN transistor in a TO-92 case. The 2N4125 is primarily intended for general purpose amplification. It is a popular choice for silicon fuzz pedals due to its low hFE specifications. It has also been used in a variety of classic pedals such as the Phase 90.

2N404 PNP germanium transistors. The 2N404 is used in many fuzz pedals along with other effects. This transistor is in a TO-5 package with long leads commonly found on germanium transistors. For a higher voltage version of this transistor, see P-Q2N404A.

OC141 NPN germanium transistors. The OC141 is a popular NPN for fuzz pedals and boost effects. This transistor is in a glass SO-2 package with long leads commonly found on germanium transistors. The NPN polarity allows for use with standard pedal power supplies. The dot indicates the collector lead.

J201 N-Channel JFET in a TO-92 package. The J201 is designed primarily for low level audio and general purpose applications with high impedance signal sources.

• Max drain to gate voltage = 40 V
• Max gate to source voltage = -40 V
• Max forward gate current = 50 mA

2N2222A in a TO-92 package. The 2N2222A is a NPN transistor commonly used in fuzz pedals. Typical Applications:

• Signal processing
• Switching
• Amplification

2N169 NPN germanium transistors in an oval package. The oval package is sometimes referred to as a top hat package. The 2N169 is a popular NPN for fuzz pedals and other effects. The NPN polarity allows for use with standard pedal power supplies.

The BC209C is a silicon NPN transistor in a TO-106 case. The BC209C is primarily intended for general purpose audio applications. BC209C transistors were used in original silicon Fuzz Face® pedals as well as a variety of D*A*M pedals.

2SD77 NPN germanium transistors. The 2SD77 is a popular NPN for fuzz pedals and other effects. The NPN polarity allows for use with standard pedal power supplies.