Transistor AF114 PNP Germanium, TO-7

Transistor AF114 PNP Germanium, TO-7

Transistors

Reference: TRAF114

Part.No: AF114

€1.20

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The AF114 is a classic PNP germanium transistor in a TO-7 can package with 4 leads (including shield). Legendary for RF and IF stages in vintage European radios and receivers, prized by restoration enthusiasts and vintage radio collectors.

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Description
Product Details

AF114 PNP Germanium Transistor - Vintage RF Stage Classic

The AF114 is a legendary PNP germanium transistor designed for RF and IF applications in vintage European radios from the 1960s onward. Its four-lead TO-7 can package includes a dedicated shield lead, essential for high-frequency stability. AF114s remain highly sought by radio restoration specialists and vintage radio collectors worldwide.

Functions & Applications

Vintage RF/IF Transistor: Optimized for mixer and oscillator stages in AM/FM receivers.
Four-Lead TO-7 Can: Includes dedicated shield lead for RF isolation and circuit stability.
Germanium Construction: Authentic low-noise performance characteristic of classic European radio design.
Period-Correct Restoration: Essential component for collectors restoring original 1960s–1970s radios to factory specifications.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	PNP
Package / Case	TO-7
Transistor Type	PNP Germanium BJT
Package	TO-7 (4-lead can with shield)
Primary Application	RF/IF Mixing, Oscillation

Frequently Asked Questions

Q: What is the 'Tin Whiskers' phenomenon in AF114?
A: The AF114 series is known for growing microscopic tin 'hairs' internally over decades, which can short the transistor elements. Collectors should test and handle carefully; replacement with a modern RF transistor or careful restoration may be necessary for long-term reliability.

Q: Can AF114 be used in modern circuits, or is it vintage-only?
A: AF114 is primarily suited to restoration of original vintage equipment. Modern designs should use contemporary low-noise RF transistors. However, enthusiasts sometimes substitute AF114 in audio preamps for its warm, low-noise characteristics.

Notes

Vintage NOS (New Old Stock) germanium component; long-term storage may result in tin whisker growth. Test before installation in critical circuits. Requires careful handling due to age-related reliability concerns.

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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