Transistor AF116 PNP, Germanium TO-7

Transistor AF116 PNP, Germanium TO-7

Transistors

Reference: TRAF116

Part.No: AF116

€1.20

In Stock

Immediate Dispatch

The AF116 is a vintage PNP Germanium transistor in a TO-7 package, originally designed for IF (Intermediate Frequency) amplification in portable AM/FM radios. A collector's piece and essential restoration component for classic radio enthusiasts.

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Description
Product Details

AF116 Vintage Germanium Transistor – Classic IF Amplifier for Radio Restoration

The AF116 is a PNP germanium transistor widely used in the IF stages of vintage portable AM/FM radios, optimized for amplification at 455kHz (AM) and 10.7MHz (FM). Its TO-7 package includes a shielded 4th lead, essential for minimizing noise in sensitive RF circuits and ensuring stable performance in classic radio designs.

Functions & Applications

IF Optimized: Designed specifically for 455kHz (AM) and 10.7MHz (FM) intermediate frequency amplification.
Shielded 4-Lead Package: Integrated shield lead reduces noise coupling in sensitive RF stages.
Vintage Reliability: Proven performance across millions of classic radio units from the golden era of portable receivers.
Low Noise Germanium: Natural low-noise characteristics ideal for weak-signal detection and preamplifier stages.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	PNP
Package / Case	TO-7
Transistor Type	Germanium PNP BJT
Package	TO-7 (4-Lead Shielded)
Primary Application	IF Amplification (455kHz AM, 10.7MHz FM)
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: My radio has 3 AF116 transistors in a row. Should I replace them all at once?
A: Yes, it's strongly recommended. If one has developed a short to the casing (tin whiskers), the others are likely at a similar stage of degradation and will fail soon. Replacing the entire IF chain ensures reliable long-term performance.

Q: Can I substitute the AF116 with a modern silicon transistor?
A: Direct substitution is difficult due to the germanium's unique low forward-voltage drop (~0.3V vs 0.7V for silicon) and frequency characteristics. For authentic restoration, the AF116 is preferred; for modern alternatives, consult a vintage radio restoration guide.

Notes

Vintage NOS (New Old Stock) germanium transistor. Tin whisker growth and internal corrosion are common failure modes in aged units; test before installation. This is a genuine restoration part for classic AM/FM radios of the 1960s–1970s era.

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-7

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