Bipolar Si & Unijunction

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Transistor MU10 Unijunction

The unijunction demos in the Forrest Mims Book spec a 2N4891, which is both hard-to-find and expensi..

$1.45 Ex Tax: $1.45

Transistor NEC 2SC945A

These are the "Q" gain bucket, 135-270. Here is the datasheet..

$0.95 Ex Tax: $0.95

Transistor NPN "Dot" 2N3563 House #

Gold-lead NOS Fairchild, house-numbered S1227. Gains 25-50, great for silicon Fuzz Faces or Rangemas..

$1.00 Ex Tax: $1.00

Transistor NPN "Dot" 2N3564 House #

NOS Fairchild, house-numbered 8016-1. Gains 25-50, great for silicon Fuzz Faces or Rangemasters...

$0.95 Ex Tax: $0.95

Transistor NPN "Dot" SGS BC207B

Gold-lead NOS by Italian maker SGS. NPN, gain range 100-300...

$1.15 Ex Tax: $1.15

Transistor NPN 306-022 "Dot"

Unlabeled NOS, most-likely made by Fairchild or National. This is "Muff Stuff"! Hfe high 200s to low..

$1.45 Ex Tax: $1.45

Transistor NPN CS2924 "Dot"

Made by Continental Device Corp., then a division of Teledyne. Hfe range 60s to low 100s...

$1.50 Ex Tax: $1.50

Transistor NPN CS3710 "Dot"

Made by Continental Device Corp., then a division of Teledyne. Average Hfe 250, fine choice for a Bi..

$1.75 Ex Tax: $1.75

Transistor NPN EN2222A "Dot"

Unlabeled NOS, most-likely made by Fairchild or National. The gain profile is like a relatively low-..

$1.25 Ex Tax: $1.25

Transistor NPN High-Gain Silicon Dots, Hfe 200-700

We don't know the maker. Not numbered, and not a very consistent lot, as was often the case in the 7..

$1.15 Ex Tax: $1.15

Transistor NPN Unbranded "Dot"

Definitely NOS, most-likely made by Fairchild. Hfe 40 to 100. Try them in silicon Fuzz Faces or Rang..

$1.00 Ex Tax: $1.00

Transistor Pair - Fuzz Face NPN "Flat Hat"

Two '60s-vintage, matched NPN devices that you won't find anywhere else. Guaranteed sweet fuzz, and ..

$22.95 Ex Tax: $22.95

Transistor PNP "Dot" SGS BC116A

Gold-lead NOS by Italian maker SGS. PNP, gain range 75-200. Some outliers run much higher...

$1.15 Ex Tax: $1.15

Transistor PNP 2N3640

NOS Carter Semiconductor, "small dot" package, Hfe 60 to 110.SURPLUS PURCHASE.  When they are gone, ..

$0.90 Ex Tax: $0.90

Transistor PNP 2N4249 "Dot"

Made by Continental Device Corp., then a division of Teledyne. Hfe 50 to low 200s...

$1.45 Ex Tax: $1.45

Transistor Samsung 2SC815Y

Real, not re-marked fakes, as we got them in the original packaging. The "Y" gain bucket is 120 to 2..

$0.95 Ex Tax: $0.95

Transistor SE1002 Fairchild

These are all guaranteed to hit Big Muff territory: Minimum Hfe 225 to high 300s. I scored a large l..

$0.95 Ex Tax: $0.95

Transistor SE4002 Fairchild

Epoxy "dot" package, Hfe range 275 to low 400s...

$1.95 Ex Tax: $1.95

Transistor SE4010 Fairchild

Vintage device for Big Muff and similar Clones. Epoxy "dot" package, guaranteed Hfe minimum 140...

$1.75 Ex Tax: $1.75

Transistor SE4021 Fairchild

Unusually high-gain vintage device for single-transistor boosts and the Big Muff. Epoxy "dot" packag..

$2.25 Ex Tax: $2.25