Specifications
- Operating Temperature: .
- Temperature Coefficient: .
- Rated Power: 300W
- Resistance Tolerance: 5%
- Technology: Wirewound
- Resistance: 4
- Model Number: R-WG300W/4-1
- Condition: New
- Type: Wirewound Resistor
- Package Type: .
4 ohm 300 Watts Non-inductive Wirewound Coated Ceramic Tube Resistor, Audio Amplifier Dummy Load, 300W.
Price history
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- for half a year
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Customer Reviews
Order 2 of these. Used a miliohm meter with kelvin connection to measure them and 1 was fine and measured 4.05 ohm but other was out of spec and measured 4.35 ohm (5% = 3.8 - 4.2 ohm). Kinda disappointed given how expensive these are. For some uses it doesn't matter much (ie dummy load for audio amp testing). For calibrating a display and settings for a bench power supply or as a shunt accuracy is important. Sadly the good one was also slightly damaged but still usable (a ding in the green coating, a crack in a ceramic disc end, and the connection tabs were bent at the holes). At least in series or parallel (2.1 or 8.4 ohm) they are still within 5% thanks to the better-than-average one. But just a heads up for anyone that's buying just 1 and accuracy matters and if they are not feeling lucky.
Order 2 of these. Used a miliohm meter with kelvin connection to measure them and 1 was fine and measured 4.05 ohm but other was out of spec and measured 4.35 ohm (5% = 3.8 - 4.2 ohm). Kinda disappointed given how expensive these are. For some uses it doesn't matter much (ie dummy load for audio amp testing). For calibrating a display and settings for a bench power supply or as a shunt accuracy is important. Sadly the good one was also slightly damaged but still usable (a ding in the green coating, a crack in a ceramic disc end, and the connection tabs were bent at the holes). At least in series or parallel (2.1 or 8.4 ohm) they are still within 5% thanks to the better-than-average one. But just a heads up for anyone that's buying just 1 and accuracy matters and if they are not feeling lucky.