Pedal Parts / DIY

Transistor - OC140, Germanium, SO-2 glass case, NPN
OC140 NPN germanium transistors. The OC140 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.
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Transistor - GT309E, Germanium, USSR Saucer Case, PNP
New old stock Soviet GT309E transistors manufactured in Ukraine. The GT309E is a germanium PNP transistor in a very low profile case. The case has a 0.29” diameter and is only 0.1” thick. These have very low leakage and work well in a variety of fuzz pedal builds.
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Transistor - 2SC828, Panasonic,TO-92 case, NPN
2SC828 NPN silicon transistors made by Panasonic. The 2SC828 is a popular NPN choice for fuzz pedals and can be found in vintage effects such as Super-Fuzz and Uni-Vibe pedals.
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Transistor - BC183L, General Purpose, TO-92 case, NPN
The BC183L is a general purpose NPN transistor in a TO-92 case. The BC183L is commonly used in fuzz pedals and has a reputation as a warm sounding silicon transistor for fuzz. The BC183L was used in some of the earliest silicon Fuzz Face pedals. The ECB pinout matches the arrangement on the P-PC-FUZZ-ISS2-BRN Iss. 2 PCB
  • NPN polarity
  • Collector emitter breakdown voltage 30V
  • Collector base breakdown voltage 45V
  • Collector current 100mA
  • Power 1W
  • Transition frequency 120MHz
  • TO-92 case
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Transistor - ACY31, Germanium, TO-1 case, PNP
ACY31 PNP germanium transistors. The ACY31 is a popular PNP for fuzz pedals and other effects. The ACY31 can be found in the rare CSL Super Fuzz version of the MKIV Tone Bender. This transistor is in a TO-1 package with long leads commonly found on germanium transistors.
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Transistor - MPSA18, Low Noise, 200mA 45V NPN
NPN low noise 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)
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Transistor - 2N1308, Germanium, TO-39 case, NPN
2N1308 NPN germanium transistors. The 2N1308 is a popular NPN for fuzz pedals and other effects. This transistor is in a TO-39 package.
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Transistor - AS394H, Matched Pair, Alfa, TO5-8 case, NPN
The AS394H is a junction isolated ultra well-matched monolithic NPN transistor pair with an order of magnitude improvement in matching over conventional transistor pairs. Electrical characteristics of these devices such as drift versus initial offset voltage, noise, and the exponential relationship of base-emitter voltage to collector current closely approach those of a theoretical transistor. Extrinsic base and emitter resistances are very low, giving very low noise and operating over a wide current range. To guarantee long term stability of matching parameters, internal clamp diodes have been added across the emitter-base junction of each transistor. These prevent degradation due to reverse biased emitter current, the most common cause of field failures in matched devices.
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Transistor - NTE103, Germanium, TO-5 case, NPN
NTE103 NPN germanium transistors. The NTE103 is a popular NPN for fuzz pedals and other effects. This transistor is in a TO-5 package with long leads commonly found on germanium transistors. The NTE103 was used in the Texas Square Face made by Cesar Diaz, the famous amp tech who worked with Stevie Ray Vaughan and others. Early in his career, SRV had a broken Fuzz Face pedal and took it to Cesar Diaz to have him fix it. Diaz fixed and modified the pedal and this became the foundation of his famous version which he named the Texas Square Face. The Diaz pedals often came with socketed NTE103 and included a set of P-QNTE123 to experiment with the different sounds of the transistors.
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Machine Pin Socket - Preci-Dip, Break Away, 1 Row, 15 Position
High quality single row machine pin sockets made by Preci-Dip. These sockets are the break-away type and can easily snap into smaller sizes such as 5 separate transistor sockets.
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Transistor - 2SD77, Germanium, TO-1 case, NPN
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.
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Transistor - 2N4403, Silicon, TO-92 case, PNP
The 2N4403 is a silicon general purpose PNP transistor in a TO-92 package. The 2N4403’s typical applications include signal processing, amplification, and switching.
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Transistor - 2N321, Germanium, TO-5 case, PNP
2N321 PNP germanium transistors. The 2N321 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.
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Transistor - 2N1303, Germanium, TO-5 case, PNP
2N1303 PNP germanium transistors. The 2N1303 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.
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Transistor - SFT353, Germanium, 18B4 case, PNP
SFT353 PNP germanium transistors. The SFT353 is a popular PNP for fuzz pedals and other effects. This transistor is in a 18B4 package with long leads commonly found on germanium transistors. This style of package can be found in Italian built Vox Tonebenders.
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Transistor - 2N3906, TO-92 case, PNP
General purpose low-power PNP bipolar junction transistor, used frequently in hobbyist electronic projects. For the NPN 2N3904 see P-Q2N3904
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Transistor - BC209C, Silicon, TO-106 case, NPN
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.
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Transistor - BC183, General Purpose, TO-92 case, NPN, Gain Sorted
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
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Transistor - 2N3566, Silicon, TO-105 case, NPN
The 2N3566 is a silicon NPN transistor in a TO-105 case. The 2N3566 is primarily intended for general purpose amplifier applications.
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Transistor - 2N1307, Germanium, TO-5 case, PNP
2N1307 PNP germanium transistors. The 2N1307 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.
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Transistor - NOS 2N3565, Micro Electronics, Silicon, TO-106 case, NPN
New old stock 2N3565 transistors manufactured by Micro Electronics. The 2N3565 is a silicon NPN transistor in a TO-106 case. The 2N3565 is primarily intended for general purpose and low level applications. 2N3565 transistors were used in the original Harmonic Percolator, Foxx Tone Machine and the Sam Ash Fuzzz Boxx.
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Transistor Socket - Mill Max, 3 Pin, Machine Pin, Through Hole
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.
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Transistor - OC141, Germanium, SO-2 glass case, NPN
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.
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Transistor - BC337, General Purpose, TO-92 case, NPN
The BC337 is a silicon general purpose NPN transistor in a TO-92 package. The BC337’s typical applications include signal processing, amplification, and switching. The BC337 is available in three different gain ranges: BC337-16, BC337-25, and BC337-40. Type hFE Range (IC=100mA, VCE=1V) Typical hFE (IC=100mA, VCE=1V) BC337-16 100-250 160 BC337-25 160-400 250 BC337-40 250-630 400
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