Hi, I have modified my round connector Plus4 power supply. I have thrown out the PCB inside and only kept the transformer. Then I designed a new PCB which has rectifier and a DC-DC bucket converter for the 5v part (LM2596-5). Like this one http://www.ebay.com/itm/1pcs-DC-DC-LM2596-Step-Down-Adjustable-Power-Supply-Module-Converter-/142161468055?hash=item21197bda97:g:8GQAAOSw-YVXmcae It works fine and fits the original power supply however I had to change the LM2596 to a fixed voltage version because I have noticed that even if I set the output voltage with potmeters, with time it slowly changes voltage. I wanted stable 5 volts. Istvan -----Original Message----- From: Didier Derny Sent: Friday, October 28, 2016 9:37 AM To: cbm-hackers@musoftware.de Subject: c64 / vic 20 power supply replacement Hi Is there any existing replacement for c64 power supply ? I have 2, one with round connector for c64 / vic 2 and one with square connector for plus4 both are heating like hell, in no time and have a really bad smell... I found one replacement on ebay but apparently not working in europe... I tried to contact the vendor but no answer... I found some people using 2 power supply 5v from usb and 9v ac from an external 9v ac power supply any way to produce the 9vac from DC ? there is the problem of galvanic isolation... -- didier Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing listReceived on 2016-10-28 09:00:02
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