*** This is a top of the line power supply for the Mattel Intellivision Computer adapter (computer module). This power supply has excellent build quality. ***

This high-end power supply is 100% compatible with the following systems (visit the various store listings for more detailed technical information)

• 100% compatible with the Mattel Intellivision Computer Adapter (computer module).

• 100% compatible with the original NES-101 front loading model that was released in 1985.

• 100% compatible with the original NES-101 top loading model that was released in 1993.

• 100% compatible with the Magnavox Odyssey 2 system (ships with a power adapter plug to support Odyssey 2 systems that need the special plug).  

** Not compatible with the Super Nintendo Entertainment System **

This is a factory new 100% compatible power supply for the Mattel Intellivision Computer Adapter (computer module). This is a high-end replacement power supply for the Mattel Intellivision Computer Adapter (computer module).

•          This power supply is a high-quality consumer AC power supply that is designed for North America and has an input voltage of 120 volts AC at 60Hz. Rated output voltage is 9 volts AC at 1.2 amps. Since all consumer AC to AC power supplies on the market use unregulated voltage designs, there is a load curve from zero to full load. When this power supply is connected to the Mattel Intellivision Computer Adapter (computer module) it will output the proper 10 volts AC at up to 1 amp just like the original Mattel power supply. More information about this can be found in the Questions and Answers section of this listing.

•          Power supply has UL listed safety certification for the United States market and CUL safety certification for the Canadian markets (UL safety certificate number E341931).      

•     Efficiency Level VI certified by the Department of Energy (DOE): Consuming up to 25% less power than previous 60 Hertz AC power supplies, this line of AC power supplies was among the first to meet the U.S. Department of Energy’s Level VI efficiency standard. This is slightly larger than similar products of lesser efficiency, as higher-grade core materials are needed to meet the Level VI requirements.

•     RoHS Complaint power supply

• Engineered in the United States and made in China using high quality materials. 
• Output cord is 6 feet long.
• 60 day return policy.
• 10 year warranty offered directly by the manufacture of the power supply. 

Questions and Answers

Question: Will this power supply power the Intellivision and Intellivision II videogame system?

Answer: No, this power supply only powers the Mattel Intellivision Computer Adapter (computer module). Mattel designed the Intellivision to use its own internal power supply and the Intellivision II uses a different external power supply. In fact, as a safety feature Mattel made the power plug on the Mattel Intellivision Computer Adapter (computer module) a different size so that one does not by accident plug the Intellivision II unregulated 16.2-16.7 volts AC power supply into the Mattel Intellivision Computer Adapter (computer module), since the computer module requires around 10 volts AC. Therefore, when using the Mattel Intellivision Computer Adapter (computer module), one needs to use both the computer adapter power supply along with their existing power supply that they are currently using with the Intellivision and Intellivision II.  

Question: How does the quality of this third-party AC to AC power supply compare to my original Mattel Intellivision Computer Adapter (computer module) power supply?

Answer: This power supply is slightly better quality when compared to the original Mattel power supply. There have been major improvements in the design of AC to DC power supplies over the last 40+ years, however in the last 40+ years there has only been minor improvements when it comes to AC to AC power supplies. In fact, finding an AC to AC power supply on the market is rare since many companies have decided to only make DC power supplies. This AC to AC power supply is UL listed which is a safety certification for the USA market. In addition, this power supply has the Canadian CUL safety certification. This power supply has the required Energy Efficiency Level VI certification by the Department of Energy (DOE). This power supply is RoHS complaint too. Currently this is the only level VI approved AC power supply on the North American market that will work with the Mattel Intellivision Computer Adapter (computer module).

Question: It is very hard to locate the out of production Mattel Intellivision Computer Adapter (computer module) power supply online, however on various websites the specs are listed as 10 volts AC at 1 amps. Why does this third-party power supply have a label on it that says it outputs 9 volts AC at 1.2 amps?

Answer: At the end of the year 2015 all 10 volt AC power supplies designed for the USA consumer market went out of production, and when the new Feb 2016 level VI energy efficiency law went into effect by the Department of Energy, AC to AC power supply companies decided to design only 6,9,12,16,20, and 24 volts AC models that are level VI rated. Unregulated AC to AC power supplies are much more complicated when compared to regulated AC to DC power supplies that most people normally use. All consumer AC to AC power supplies on the market have unregulated designs, which means there is a load curve from zero load to full load. For example, this third-party power supply according to the specs has a voltage rating of 11.6 volts AC when there is no load (zero current draw). Under real world conditions we measured around 11.09 volts AC when there is no load. However as soon as the Mattel Intellivision Computer Adapter (computer module) is drawing a load, this power supply outputs around 10.38 volts AC and around 9.84 volts AC when the voice synthesis module is connected. Around 10.38 volts AC and around 9.84 volts AC is the proper voltage to use with the Mattel Intellivision Computer Adapter (computer module). 24 x 7 for around 30 days we ran the Mattel Intellivision Computer Adapter (computer module) with the voice synthesis module attached and everything worked perfectly fine. Using this power supply, the Mattel Intellivision Computer Adapter (computer module) when the voice synthesis module is connected will not drop below 9.84 volts AC while under a 1 amp load. This third-party AC power supply because of the unregulated voltage curve will only output around 9 volts AC when under a full load of 1.2 amps.  

Question: Can I use this power supply with other products that I own that need 9 volts AC and what would happen if the current draw on the device I connect to this power supply starts to draw more than 1.2 amps?

Answer: Because of the load curve on all consumer unregulated AC power supplies, one needs to be careful with the products they use this power supply with. The load curve for this power supply under real word conditions is between 11.09 volts to 9 volts AC. This power supply will only output around 9 volts AC when the load is 1.2 amps. Since the Mattel Intellivision Computer Adapter (computer module) with the voice synthesis module attached never draws more then 1 amps of power, then this power supply puts out around 9.84 volts AC when used with that Mattel product. However, one should never use this power supply with a product that requires more than 1.2 amps, since the voltage would drop below 9 volts AC and destroy the power supply. Unregulated AC power supplies have a small safety margin where the fuse in the power supply will not open if there is a brief current draw that goes over the 1.2 amps for only a few seconds. AC to AC transformers are not designed for the user to exceed the output current.  Given an overload condition, they will start to heat-up and internal built-in safety mechanisms (fuse) will open, permanently destroying the power supply. These power supplies are sealed at the factory and were not designed to be opened up for a user to replace the fuse, also the 10-year manufactory warranty would most likely not be honored if the consumer abused the power supply and went over the stated current of 1.2 amps.  

Question: Why is this power supply only offered in North America, what if I wanted to use this power supply on 220 volts at 50Hz?

Answer: This power supply would be permanently destroyed and the internal fuse would blow if connected to 220 volts at 50Hz.  All consumer AC to AC power supplies are made for either 120 volts AC at 60Hz or 220 volts AC at 50Hz. In the 21^st Century major technological advances have been made on worldwide regulated AC to DC power supplies that work between 100-240 volts AC at 50-60Hz. However, because of that lack of consumer demand for unregulated AC to AC power supplies being used in the 21^st Century, the research and development costs have not been spent to make AC to AC power supplies work worldwide between 100-240 volt AC at 50-60Hz. Therefore, all consumer AC to AC power supplies for the North America market are still designed to only work with 120 volts AC at 60Hz. There are power supply companies in Europe that do make AC to AC power supplies that work at only 220 volts at 50Hz, and one might be able to locate one that works with the Mattel Intellivision Computer Adapter (computer module).