Overview
The Motorola 1.0MΩ 1/2W carbon composition resistor is a vintage through-hole component designed for use in legacy audio, radio, and industrial electronics. This resistor features a 1 megohm resistance value with ±10% tolerance, making it suitable for biasing circuits, high-impedance inputs, and filtering applications where non-inductive performance is essential. Axial lead termination enables straightforward board insertion and removal, ideal for both repair technicians and restorers working with classic equipment.
Key Features
- 1.0 MΩ resistance value with ±10% tolerance rating
- 0.5W (1/2W) power dissipation rating for low-power circuits
- Axial lead termination for easy insertion into through-hole designs
- Carbon composition construction provides inherent non-inductive characteristics
- Operating temperature range: −55°C to +125°C
- New in box condition, ready for immediate use
Technical Specifications
Carbon composition resistors remain standard in vintage electronics repair due to their pulse-withstanding capability and low inductance. The 1/2W rating handles typical biasing and coupling applications in audio stages and RF circuits without thermal stress.
Typical Applications
- Vintage tube radio bias networks and grid-leak biasing
- High-impedance audio preamplifier input networks
- Coupling and decoupling circuits in classic amplifiers
- Vintage test equipment and oscilloscope restoration
- Guitar amplifier restoration and circuit modifications
- Industrial control circuits requiring high-resistance values
Compatibility & Replacements
Compatible With
- Vintage tube amplifiers and radios from the 1950s–1980s
- Classic audio equipment and hi-fi systems
- Vintage test instruments (oscilloscopes, multimeters)
- Guitar amplifiers and effects units
- Any circuit board design using axial through-hole resistors
Replaces / Drop-In Replacement For
This Motorola part number 6-6046 replaces original 1.0MΩ carbon composition resistors in vintage Motorola consumer and industrial electronics. Verify compatibility with your specific unit’s original schematic before ordering, as vintage equipment may contain slightly different values in the 820kΩ to 1.2MΩ range depending on circuit design.
Works With
- Standard PCB through-hole layouts with 0.1″ spacing
- Breadboards and prototype circuits
- Point-to-point wiring (vintage construction method)
- Any circuit requiring non-inductive high-resistance elements
