Stay original! Buy only the genuine Electroware's gear and beware the fancy overrated clones flooding eBay & WWW!
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The ZX Spectrum +2A, +2B computers were originally equipped with heavy (2kg in weight), transformer based PSU. Spectrum +3 was equipped with stronger, quite reliable, switching mode PSU handling bigger loads because of integrated 3"floppy drive. The best of the original PSUs were offering 5VDC@2A, 12VDC@0.7A & -12VDC@0.05A. All of these PSUs have same problem nowadays: all are nearly 40 years old and not longer reliable because of capacitors degradation. Old power supply, if still working, can ba a source of killing over voltage spikes that will burn your chips.
If your PSU is not longer working or you are not sure about it's condition - it's time to get a solid, superior quality replacement. It's 50W (55W peak) of total combined output power is far more than two times stronger than best model of original Sinclair ZX Spectrum +2, +3 PSU and it's two times smaller in dimensions and weight (0.4KG) to save your desk's space.
I believe your ZX Spectrum is using many enchantments nowadays as fans and users are creating wonderful hardware stuff like FDD emulators (using SD Card), video output enhancers and VGA/HDMI adapters, WiFi serial modems, memory upgrades etc... all to enjoy. But remember that all of these gadgets are stressing the PSU and original one become even more dangerous when working overloaded.
Please notice that most of cheap PSU replacements for ZX Spectrum +2/+3 computers are missing the -12VDC voltage (used for serial port) basing on the fact that most users is never using it so will never notice. Our philosophy is opposite: reliable PSU replacement needs to supply all the voltages as per original specification but offering more power on each line.
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Standard ZX Spectrum PSU+ features:
Stay with the original Electroware products to gain top build quality, unique features unavailable with the clone products:
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Every single Electroware PSU unit is triple tested before dispatch. To assure flawless quality and long lasting performance we are testing with original Commodore gear from our collection as well as by burn-in test with customized load simulating devices causing 150% overload (comparing to regular ZX Spectrum +3 computer system).
Stay with the original Electroware products to gain top build quality, unique features unavailable with the clone products.
By purchasing this product you are supporting the retro computing community and contributing to our continuous developing process. Thank you!
Warning!
Risk of electrical shock and energy hazard when opened. All failures should be examined by a qualified technicians only. Risk of fire or electrical shock. The ventilation holes should be protected from foreign objects or dripping liquids. Please do not install power supplies in places with high ambient temperature or close to the heat source. Enclosed power supplies are intent to work in indoor locations, it's not allowed to use power supplies outdoor, in dust or high moisture. Output current and output wattage must not exceed the rated values.
This replacement ZX Spectrum PSU has been designed for ZX Spectrum +2A, +2B and +3 vintage computer systems only and should be considered as an integral component of ZX Spectrum computer system. Do not connect to any other devices as it's not a general purpose PSU. Manufacturer is not responsible for any consequences of unauthorised or arbitrary repairs, modifications or incorrect usage. Please notice that new, properly working replacement ZX Spectrum PSU is reducing the system's potential fail rate but still is not guaranteeing that entire Sinclair ZX Spectrum system will work correctly (it's ~40 years old).
Stay original! Buy only the genuine C64PSU.com gear and beware the fancy overrated clones flooding eBay & WWW!