VINTAGE THORDARSON 121 POWER TRANSISTOR

Premium New Old Stock (NOS) | Vintage Germanium PNP Audio Grade

Up for sale is a rare, pristine New Old Stock (NOS) vintage Germanium PNP Power Transistor housed in the classic, heavy-duty TO-3 metal diamond-flange package. This component features the highly coveted original factory legacy house stamping "121" alongside an 8004 manufacturing date code (produced the 4th week of 1980).

Authentic Thordarson Packaging Included

This component comes complete inside its original, genuine vintage Thordarson brand packaging. Renowned by engineers and radio restorers for their historic military and industrial-grade standards, authentic Thordarson-boxed parts protect against modern counterfeit clones and guarantee accurate historical provenance for high-end restorations.

Technical Specifications

Semiconductor Material	Germanium (Ge) Alloy Junction
Transistor Polarity	PNP Bipolar Junction Transistor (BJT)
Package / Case Outline	TO-3 (2-Pin Diamond Metal Can)
Collector-Emitter Voltage (Vceo)	45V - 60V (Circuit Dependent)
Continuous Collector Current (Ic)	Up to 10 A Range Max
Factory Date Code	8004 (Week 4, 1980)

Cross-Reference & Interchange Compatibility

This premium Germanium element provides a high-reliability, drop-in circuit alternative to the extremely expensive retail-boxed legacy components. It is universally cross-referenced with the following classic industry numbers:

        NTE121  ECG121  GE-16  SK3009  2N2147  2N2869  121-Z9006  PTC105
    

Target Applications

Vintage solid-state guitar and bass amplifier output stages (retains authentic warmth and clipping profiles).
Classic car AM/FM radio receiver audio power configurations.
Hi-Fi stereo legacy receivers and period-correct custom power supplies requiring strict Germanium bias parameters.

Condition & Shipping Policies

Condition: Unused New Old Stock (NOS). Pins are straight, completely clean, and free of any historic solder or flux residues.
Handling: Packaged carefully inside specialized static-shielding material along with its historical Thordarson paper box to guarantee safe, collector-grade delivery.
Note: Please consult your technical equipment schematics to ensure precise bias-matching settings when substituting legacy Germanium semiconductor variants.