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Pcs of 2 New, AC128 PNP Transistor

4.5 (1) Write Review
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$12.15

$ 6 .99 $6.99

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About this item

  • PMMCON Pcs of 2 NEW, AC128 PNP Transistor
  • AC128 transistor is a germanium positive negative positive (PNP) small signal amplifier mainly used in guitar special effects equipment and amateur radio equipment
  • The AC128 transistor, like most other germanium transistors, is almost outdated
  • Composed of a layer of negative electrode material sandwiched between two positive electrode layers. The middle layer serves as a switch and is called the base. The other layers are called emitters and collectors, and the power supply voltage and load are connected through the emitter and collector connections. In PNP transistor circuits, the collector is always positive relative to the emitter


PMMCON Pcs of 2 NEW, AC128 PNP Transistor


Mike T
January 13, 2025
Very high leakage current, unusable. One was >2.5mA, the other >4mA. Measured with 9V supply and 2K source resistor, gate connected to source. With gate connected to drain, Rdson was low, so they can be turned on, but they just can't be turned fully off.