Transistor 2SB185 PNP, Germanium TO-1

Transistor 2SB185 PNP, Germanium TO-1

Transistors

Reference: TR2SB185

Part.No: 2SB185

€1.40

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The 2SB185 is a classic PNP Germanium Transistor in a TO-1 metal can package. Designed for vintage audio equipment repair and restoration, this NOS (New Old Stock) part maintains authentic performance in retro amplifiers and radio receivers.

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Description
Product Details

2SB185 Germanium Transistor - Vintage Audio Amplifier Repair Part

The 2SB185 is a premium germanium PNP transistor from the golden age of audio electronics. Its warm, soft characteristics are prized by audio engineers and vintage equipment enthusiasts for authentic reproduction in classic amplifier and radio circuits.

Functions & Applications

Germanium Construction: Delivers the warm, smooth sonic characteristics sought after in vintage audio gear.
TO-1 Metal Can: Robust package with excellent thermal stability, original to period equipment.
Low Noise: Ideal for pre-amplifier and driver stages in tube and solid-state amplifiers.
NOS Quality: New Old Stock ensures original performance specifications and long shelf life.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	PNP
Package / Case	TO-1
Collector-Emitter Voltage (Vceo)	25V
Mounting Type	Through-Hole (THT)
Material	Germanium

Frequently Asked Questions

Q: Can I use the 2SB185 to replace a silicon transistor in a modern circuit?
A: Not directly without circuit modification. The germanium 2SB185 has a lower forward voltage drop (~0.2V vs 0.7V for silicon) and different gain characteristics. It is best reserved for restoring original vintage equipment.

Q: What is the complementary NPN germanium transistor?
A: The complementary NPN counterpart to the 2SB185 is the 2SA185 (germanium NPN, TO-1 package).

Notes

Vintage NOS (New Old Stock) germanium transistor. Lower forward voltage drop (~0.2V) and different gain profile than silicon equivalents. Best suited for period-accurate restoration of vintage audio equipment.

Note: Price refers to one (1) piece. The component is shipped in bulk without individual packaging.

Transistor Type: BJT (Bipolar Junction Transistor)
Transistor Polarity / Channel: PNP
Transistor Case Style: TO-1

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