Transistors

Transistor - 2N404A, Germanium, TO-5 case, PNP
2N404A PNP germanium transistors. The 2N404A is used in many fuzz pedals along with other effects. The 2N404A is the same as the 2N404 but with a higher voltage rating. This transistor is in a TO-5 package with long leads commonly found on germanium transistors. For a lower voltage version of this transistor, see P-Q2N404.
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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 - 2N404, Germanium, TO-5 case, PNP
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.
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Transistor - 2N169, Germanium, Oval case, NPN
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.
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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 - 2N527, Germanium, TO-5 case, PNP
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.
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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 - 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 - 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 - 2N1309, Germanium, TO-5 case, PNP
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.
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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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Transistor - AC162, Siemens, Germanium, TO-1 case, PNP
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.
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Transistor - 2N508, Germanium, TO-5 case, PNP
2N508 PNP germanium transistors. The 2N508 is a popular PNP for fuzz pedals and other effects. It can be found in modern classics such as the Sunface. This transistor is in a TO-5 package with long leads commonly found on germanium transistors.
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Transistor - OC46, Germanium, SO-2 glass case, PNP
OC46 PNP germanium transistors. The OC46 is a popular PNP for fuzz pedals and boost effects. It can be found in vintage electronics and modern fuzz pedals. This transistor is in a black glass SO-2 package with long leads commonly found on germanium transistors.
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Transistor - SFT319, Germanium, 18B4 case, PNP
SFT319 PNP germanium transistors. The SFT319 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 - 2N408, Germanium, TO-1 case, PNP
2N408 PNP germanium transistors. The 2N408 is a popular PNP for fuzz pedals and other effects. The 2N408 was popularly used in the germanium version of the Fuzzrite by Mosrite along with the 2N2613.
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Transistor - TI377, Germanium, SO-2 metal case, PNP
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.
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Transistor - 2N797, Germanium, TO-18 case, NPN
2N797 NPN germanium transistors. The 2N797 is a popular NPN for fuzz pedals and other effects. The NPN polarity allows for use with standard pedal power supplies. The 2N797 is a fairly unique germanium transistor since it is in a TO-18 package.
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Transistor - OC45, Adzam, Germanium, SO-2 glass case, PNP
Adzam (Mazda) brand OC45 PNP germanium transistors. The OC45 is a popular PNP for fuzz pedals and boost effects. This transistor is in a glass SO-2 package with long leads commonly found on germanium transistors. The dot indicates the collector lead.
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Transistor - 2N1305, Germanium, TO-5 case, PNP
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.
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Transistor - OC139, Germanium, SO-2 glass case, NPN
OC139 NPN germanium transistors. The OC139 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 OC139 can be found in the EarthQuaker Devices Bows germanium preamp.
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Transistor - OC43, Germanium, SO-2 glass case, PNP
OC43 PNP germanium transistors. The OC43 is a popular PNP for fuzz pedals and boost effects. This transistor is in a glass SO-2 package with long leads commonly found on germanium transistors. The dot indicates the collector lead.
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Transistor Set - tested and selected for Fuzz Face, 2N1309, PNP, Germanium
This is a set of two 2N1309 germanium transistors that have been hand-selected to work in the germanium Fuzz Face circuit. Also included are 4 metal film resistors to use in the circuit. In most cases, the values have been modified from the stock values slightly to ensure that the collector of Q2 biases to roughly -4.5V. A data sheet containing the schematic and the resistor values is included so that you can use your own resistor type if you would prefer. There is a range of bias voltages that can sound nice in a Fuzz Face, and voltages in original units varied. These transistors have been tested with bias voltage, sound, and noise level in mind. Note that due to a variety of factors such as battery/PSU voltage, temperature, and component tolerance, the voltage on the collector of Q2 may not measure at exactly -4.5V, but it should be close in a properly-built circuit.
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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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