Timeline for Old MSX computer -5v power
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 9, 2019 at 22:39 | vote | accept | Martin Cole | ||
| Mar 9, 2019 at 19:27 | comment | added | Chris Stratton | Hmm, IBB for 4116's seems to be a few hundred uA's so either there are an awful lot of them or something else is drawing that amp and a half. | |
| Mar 9, 2019 at 19:21 | comment | added | Martin Cole | @ChrisStratton - Based on what I've found out the -5v is needed for the RAM chips (4116) | |
| Mar 9, 2019 at 19:21 | comment | added | Martin Cole | @HandyHowie - I've discussed this with another MSX enthusiast who has replaced power supplies and he indicated that the minimum required for the 5v would be 1.2A | |
| Mar 9, 2019 at 18:27 | comment | added | Chris Stratton | Might be worth trying to figure out what the -5v supply is used for. Likely it is low current, which could make using a PC supply with a -12v rail and a 7905 linear regulator to provide -5v from that a possibility. | |
| Mar 9, 2019 at 16:41 | answer | added | Dave Tweed | timeline score: 1 | |
| Mar 9, 2019 at 16:28 | comment | added | Dave Tweed | @ElliotAlderson: Nonfunctioning. | |
| Mar 9, 2019 at 16:15 | review | First posts | |||
| Mar 9, 2019 at 17:20 | |||||
| Mar 9, 2019 at 16:13 | comment | added | Elliot Alderson | What does "duff" mean? | |
| Mar 9, 2019 at 16:13 | comment | added | HandyHowie | The current requirements are just as important as the voltage requirements. | |
| Mar 9, 2019 at 16:11 | history | asked | Martin Cole | CC BY-SA 4.0 |