Protect your Commodore 64 from killer power supplies!Designed by SukkoPera's Retro Works in Italy
WARNING - ALL ACTIVITY IS TEMPORARILY SUSPENDED DUE TO THE CORONAVIRUS PANDEMIC - GOOD LUCK EVERYONE.
What is it? OpenC64Saver is an Open Hardware implementation of the Computer Saver device developed by Ray Carlsen, mainly targeted at Commodore 64 users, but also usable on VIC-20 computers. Why di...Read More…
OpenC64Saver is an Open Hardware implementation of the Computer Saver device developed by Ray Carlsen, mainly targeted at Commodore 64 users, but also usable on VIC-20 computers.
This over-voltage protection unit is designed to prevent damage to the Commodore 64 computer due to a failing power supply. One of the ways the Commodore "brick" power supply can fail is from a shorted internal 5 volt regulator. That fault puts excessive voltage into the computer and damages chips such as RAM very quickly... and silently. The Saver protector is essentially a fast-acting electronic circuit breaker. It functions to quickly cut off the 5 volt supply line to the computer if the voltage exceeds about 5.4 volts. This Saver is designed to protect any computer that uses the standard Commodore "brick" power supply as well as any newer switch-mode PS. Computers include all versions of the C64, the later CR version of the VIC20, and the Plus/4. - Ray Carlsen
OpenC64Saver is Open Hardware. If you make any modifications to the board, please contribute them back.
If you buy the component kit, this is what you will get:
Please note that these kits require calibration: you will need to use a variable voltage source and a precise multimeter to set the cut-off point.
OpenC64Saver is provided to you 'as is' and without any express or implied warranties whatsoever with respect to its functionality, operability or use, including, without limitation, any implied warranties of merchantability, fitness for a particular purpose or infringement. We expressly disclaim any liability whatsoever for any direct, indirect, consequential, incidental or special damages, including, without limitation, lost revenues, lost profits, losses resulting from business interruption or loss of data, regardless of the form of action or legal theory under which the liability may be asserted, even if advised of the possibility or likelihood of such damages.
If you need help or have questions, you can join the official Telegram group.
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Poste Italiane: PostaPriority Internazionale
This service has a sort of best-effort tracking system. It is the cheapest method and, depending on where you live, you might get some tracking information or not. If you choose this method, the shipment will be entirely at your risk, if the parcel gets lost you will get NO REFUND. This being said, in almost 2 years only a single parcel was lost. If you prefer having full tracking, please choose "Raccomandata Internazionale".
Poste Italiane: Raccomandata Internazionale
This service is basically "Tracked & signed for". It is rather expensive but it is fully trackable and refundable. If you prefer a cheaper option, choose "PostaPriority Internazionale" (at your risk).
Freddy | Oct. 11, 2019
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