Transistors

2N5458 N-channel JFET in a TO-92 package. The 2N5458 is an N−channel junction field effect transistors, depletion mode (Type A), designed for audio and switching applications. Features

• N−Channel for Higher Gain
• Drain and Source Interchangeable
• High AC Input Impedance
• High DC Input Resistance
• Low Transfer and Input Capacitance
• Low Cross−Modulation and Intermodulation Distortion

2N1309 PNP germanium transistors. The 2N1309 is a popular PNP for fuzz pedals and other effects. This transistor is in a TO-5 package with long leads commonly found on germanium transistors.

NPN Darlington transistor (TO-92 package) - designed for applications requiring extremely high current gain at collector currents to 1.0A.

• Max collector to emitter voltage = 30 V
• Max collector to base voltage = 30 V
• Max emitter to base voltage = 10 V
• Max collector current = 1.2 A (continuous)

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

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.

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.

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

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

2N7000 N-channel enhancement mode field effect transistors. 2N7000 MOSFETs are used in many DIY projects such as boost and distortion effects pedals.
Features:

• Voltage Controlled Small Signal Switch
• High Saturation Current Capability
• Rugged and Reliable
• High Density Cell Design for Low RDS(ON)
  

2N2614 PNP germanium transistors. The 2N2614 is a popular PNP for fuzz pedals and other effects. The 2N2614 was popularly used in the Maestro Fuzz Tone FZ-1a pedal.

2N4061 PNP transistors. This is a silicon PNP transistor in a TO-92 package. The 2N4061 has been used in a variety of effects pedals and is most notably used in the Zonk Machine II.

2N1308 NPN germanium transistors. The 2N1308 is a popular NPN for fuzz pedals and other effects. This transistor is in a TO-39 package.

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.

2N527 PNP germanium transistors. The 2N527 is a popular PNP for fuzz pedals and other effects. It can be found in modern classics such as the Sunface and Benson Fuzz. This transistor is in a TO-5 package with long leads commonly found on germanium transistors.

2N5485 N-channel JFET in a TO-92 package. The 2N5485 is an N−channel junction field effect transistors designed for RF amplifier and mixer applications. These devices operate well in the VHF/UHF frequency range.

MOSFET BS170 N-Channel Transistor. Used in MOD® Kits.
Note - this is a fragile component! Use caution not to overheat or break leads.

The BC183A transistors manufactured by ITT. The BC183A is a general purpose NPN transistor in a TO-92 case. It is commonly used in fuzz pedals and has a reputation as a warm sounding silicon transistor for fuzz. A version of the BC183A, the BC183KA can be found in some vintage Fuzz Face pedals.

AC162 PNP germanium transistors made by Siemens. The AC162 is a popular PNP transistor among fuzz builders and is a great option for effects that use germanium transistors. This transistor is in a TO-1 package that is unique to Siemens transistors and features the long leads commonly found on germanium transistors.

The 2N4401 is a silicon general purpose NPN transistor in a TO-92 package. The 2N4401’s typical applications include signal processing, amplification, and switching.

Peavey's direct replacement for the SJE 5332. The MJE253G PNP transistor is rated 120V, 3A, and comes in a Case-77 package.

AF101 PNP germanium transistors made by Telefunken. The AF101 is a PNP transistor recommended for mixer and IF stages and works well in effects that use germanium transistors such as fuzz and boost pedals. This transistor is in a unique SO-2 package and features the long leads commonly found on germanium transistors.

2N1305 PNP germanium transistors. The 2N1305 is a popular PNP for fuzz pedals and other effects. This transistor is in a TO-5 package with long leads commonly found on germanium transistors.

TI377 PNP germanium transistors from Texas Instruments. The TI377 is a great PNP for fuzz pedals and other effects. This transistor is in a metal SO-2 package with long leads commonly found on germanium transistors. This package with the gold leads visually matches the 2G308, 2G309, and 2G381 transistors found in Zonk and Tonebender MKI fuzz pedals.

PCB for converting SMD SOT-23 transistors and FETs to through hole footprints. This adapter board fits SOT-23 packages. Solder the device to this PCB then attach wires or pin headers (sold seperately) to connect to through hole footprints on PCBs or breadboards. The white box on the PCB can be used to label the part with a marker. See image below for pinout.