Overview
The Motorola 6-6410 is a fixed-value carbon composition resistor rated at 33,000 ohms (33K) with a ±10% tolerance band. With a 0.5-watt power dissipation rating, this axial-lead component is designed for legacy circuit repairs, vintage electronics restoration, and applications where carbon composition resistors are specified or preferred for their audio characteristics. Manufactured in the United States, this NOS pack provides authentic Motorola quality for equipment requiring period-correct components.
Key Features
- Resistance value: 33K ohm (33,000 ohms)
- Tolerance: ±10% — typical of vintage carbon composition design
- Power rating: 0.5W (1/2W) — suitable for low-power signal circuits
- Axial lead configuration — drop-in replacement for legacy PCBs
- Carbon composition construction — preferred in vintage audio equipment for harmonic characteristics
- New in Box (NOS) — original Motorola stock, ready for immediate use
Technical Specifications
| Resistance Value | 33,000 ohms (33K) |
| Tolerance | ±10% |
| Power Rating | 0.5W (1/2W) |
| Construction Type | Carbon Composition |
| Lead Style | Axial |
| Manufacturer | Motorola |
| Part Number | 6-6410 |
| Condition | New in Box (NOS) |
| Manufacturing Origin | United States |
Typical Applications
- Vintage audio equipment — tube amplifiers, guitar amps, and hi-fi receivers where carbon composition resistors are preferred
- Test equipment repair — oscilloscopes, signal generators, and vintage laboratory instruments
- Industrial control circuits — legacy PLC and relay logic cabinets requiring period-correct components
- Electronic restoration — radio sets, tube radios, and mid-century consumer electronics
- Bias and load resistor networks — low-power signal conditioning and voltage divider applications
Compatibility & Replacements
Compatible With
- Vintage tube amplifiers (Fender, Marshall, Ampeg)
- Analog test equipment (HP, Tektronix, Fluke legacy models)
- Vintage radio and audio receiver chassis
- Industrial relay logic and control panels from 1950s–1980s
- Guitar effect pedals and vintage electronic musical instruments
Replaces / Drop-In Replacement For
- Any circuit board or schematic calling for a 33K ±10% 1/2W carbon composition resistor
- Vintage audio and RF circuits originally specified with Motorola 6-6410
- Legacy industrial control and measurement circuits requiring 33K ohm fixed resistors
Works With
- Standard through-hole solder joints (axial lead design)
- PCB layouts from 1950s through 1980s tube and solid-state equipment
- Analog signal paths, biasing networks, and voltage divider configurations
- Low-frequency and audio-range applications where carbon composition characteristics are valued
