Australian Resistors – Supplier of Wire Wound Resistors and Power Resistors

Wire Wound Potentiometer

Update 23 March 2016 – Wire Wound Potentiometer

Current lead times on wire wound potentiometer production at our Minto manufacturing facility are currently on a 1-2 week lead time depending on quantity, type and quantity required. We can make custom made wire wound potentiometers to your requirements, ranging from dual gang, custom made potentiometer shaft length and any resistance required that falls within the standard range which is 1 ohm to 50,000 ohms. We can supply ‘off tool’ samples for customers to verify the specifications meet their requirements. For volume orders contact us to confirm the lead time for production of […]

March 23rd, 2016|Applications, wire wound potentiometer|

Update February 2016 – Wire Wound Resistors, Wire Wound Potentiometers and Power Resistor Lead Times

13 February 2016. We get a number of requests for lead time updates on our range of resistive products. Lead times can vary depending on our order backlog, stock of components parts and holiday seasons. We can typically react very quickly to all customer orders. Our suggestion is to contact us with your resistor requirement including type of resistors required, the quantity required and any special requirements including urgent delivery. We look forward to assisting you and look forward to your enquiry.

February 14th, 2016|Power Resistor, wire wound potentiometer, Wire Wound Resistors|

Wire Wound Potentiometer Manufacturing

The usage of wire wound potentiometers has varied hugely since we started manufacturing them well over 60 years ago. As modern electronic design concepts and digital electronics have evolved over the last 20 years the demand for wire wound potentiometers has declined however there is still a good market and demand for these products from a wide variety of nice markets. These markets include:

audio amplifiers, both valve and solid state
industrial control circuits requiring a wattage of 2 to 3 watts power rating
lighting control circuits
motor control circuits
laboratory test jigs
replacement market
heater control circuits
transportation related industries

As Australia’s only manufacturer of wire wound potentiometers we […]

January 5th, 2016|Applications, resistor manufacturer, wire wound potentiometer|

Wirewound Potentiometer Applications

Wirewound Potentiometer – Power Rated Variable Resistor
The requirement for variable resistance in electrical and electronic circuits has existed ever since electrical engineering has been around. From the early days of valve based radio and television, there has been a requirement for a variable resistance that has a power rating of several watts.

The AW 3 watt wirewound potentiometer manufactured by Australian Resistors has been the ‘standard’ for wirewound potentiometers in Australia for over 50 years. It has also been extensively exported around the world due to its reputation for long term reliability and economic pricing. There is a strong distributor network for […]

August 20th, 2015|Applications, variable resistors, wire wound potentiometer, Wire Wound Resistors, wirewound potentiometer|

Wire Wound Potentiometer – Audio Amplifier Application

Potentiometers have been used for over 70 years for applications where varying a resistance is necessary as part of an electronic circuit. Typically carbon based tracks were employed for many years but when power ratings of several watts are required then the use of a wire wound element is preferable as greater power dissipation is possible.

A local high specification audio amplifier manufacturer needed a high reliability wire wound potentiometer to act as a volume control in one of their amplifier designs. The potentiometer required a 2.2 watt rating and the AW potentiometer was deemed to be a suitable candidate as it […]

April 20th, 2015|Resistor Applications, wire wound potentiometer|

Wire Wound Potentiometer Reliability

Wire Wound Potentiometer Reliability
Potentiometers have been used in electronic circuitry since the early 1900’s. The mass production of valve radio’s in the 1920’s lead to a demand for reliable, cost effective variable resistors for applications such as tone controls and volume controls. Carbon potentiometers were often used as the resistive material(and still are) for low wattage applications. The potentiometer ‘wiper’ – the moving ‘arm’ that connects to one of the potentiometers terminal was often the cause of unreliable operation in early manufacturing operations of potentiometers. The wiper must make an effective and highly reliable contact with the resistance element during […]

May 27th, 2014|wire wound potentiometer|

5 Watt Wire Wound Potentiometer

We have had several enquiries for a 5 watt rated wire wound potentiometer for applications ranging from motor control, light dimming, audio equipment and industrial controls. The standard AW potentiometer is rated at 3 watts but can be used in a 5 watt application. The way we achieve a 5 watt rated wire wound potentiometer is to use a dual gang AW potentiomer with the terminals paralleled up to achieve the higher wattage rating required.
Available Resistance Range
Because the AW potentiometer has a resistance range from 1 ohm to 50k ohms (with a linear taper) when the dual gangs are connected in […]

March 11th, 2014|wire wound potentiometer|

Wire Wound Potentiometer For Audio Applications

Wire wound potentiometers have been used widely within the audio visual industry as a superior alternative to carbon based potentiometers for many years. Carbon potentiometers can exhibit the following negative qualities particularly in audio applications:

Carbon potentiometers can be ‘noisy’ electrically. As the carbon elements within the potentiometers age they can begin to generate electrical noise which, when amplified for example, can result in an inferior sound quality audio applications
Potential for failure in higher power applications. Carbon ‘pots’ generally have a lower wattage rating than their wire wound counterparts. This is often the case in high end audio applications employing vacuum […]

December 7th, 2013|Applications, wire wound potentiometer|

AW Series Wire Wound Potentiometer – Oven Control Application

Our resistors products have been used in literally thousands applications for over 30 years. Over the next few months we will discuss some of the end products that the resistors went into. In some instances ‘standard’ products were used, however, in many instances we have offered our clients a highly customised resistor that exactly meets their requirements and specifications:
AW Potentiometer For Oven Temperature Control Application.
One of Australia’s most high profile manufacturers of stoves, ovens and range hoods approached us as they had a new ‘high end’ range in design but needed a high quality wire wound potentiometer to work in […]

September 10th, 2013|Resistor Applications, wire wound potentiometer|