AussieAtari Posted January 2, 2007 Share Posted January 2, 2007 Thanks to Murph I am now the proud owner of a FB2. My question is am I able to use my FB1 ac adaptor with my FB2? The FB1 adaptor output is 9V 300MA and the FB2 is 9V 200MA with both having the same plug and polarity. Quote Link to comment Share on other sites More sharing options...
Dragnerok X Posted January 2, 2007 Share Posted January 2, 2007 (edited) Thanks to Murph I am now the proud owner of a FB2. My question is am I able to use my FB1 ac adaptor with my FB2? The FB1 adaptor output is 9V 300MA and the FB2 is 9V 200MA with both having the same plug and polarity. Assuming that the plugs and polarity are the same a 100ma difference SHOULD be fine. However, considering the architecture of the two are completely different (one being an NES on a chip and one being an Atari), I could be wrong. Then again, considering that the FB1 was designed by Atari, it still might use the same 7805 linear regulator which is pretty common along electronics of that size. Another thing to note with power supply's is that with extra current (hence the MA) is that whatever device is using it will only take as much as it needs, too little, now that could be a problem. So really, in theory at least, it should work. Note: Dragnerok X or anyone else using such alias shall not be responsible for you or anyone else's 1. Death 2. Death of Atari 2600, Flashback 1, 2 or Sears equivalent 3. Death of power supply using electronic device (yes, cell phones too.) 4. Death of close or distant relatives, once, twice or even thrice removed 5. Death of 7805 linear regulator 6. Death of free time/life 7. Death of "homebrew" power supply you make in your garage using these principals 8. Death of "homebrew" vehicle using said power supply 9. Death of your boss' fiance's ex for telling everybody about the crazy things you do in your garage 10. Other Edited January 2, 2007 by Dragnerok X Quote Link to comment Share on other sites More sharing options...
Retro Rogue Posted January 3, 2007 Share Posted January 3, 2007 Then again, considering that the FB1 was designed by Atari, Designed by Atari? Quote Link to comment Share on other sites More sharing options...
supercat Posted January 3, 2007 Share Posted January 3, 2007 Thanks to Murph I am now the proud owner of a FB2. My question is am I able to use my FB1 ac adaptor with my FB2? The FB1 adaptor output is 9V 300MA and the FB2 is 9V 200MA with both having the same plug and polarity. A device may generally be operated just fine with a wall-brick that can output more current than the device requires. There are, however, a couple of issues that may arise. (1) Inrush current. Some devices may have essentially-unlimited inrush current demands; they expect that the supply will 'sag' rather than feeding them all the current they'll accept. This normally isn't a problem, but may be a factor when e.g. using a 40 amp supply to drive a device that's designed for a 100mA supply. (2) Overvoltage. Although many wall-bricks have a single voltage printed on them, the actual voltage they output may vary from slightly below the nominal value to significantly above it, depending upon current draw. Drawing even a quarter of the rated current will typically pull the voltage to within a volt or two of nominal. Some devices include an overvoltage clamp zener or circuit. If a device that includes a 9 volt clamp circuit is packaged with a "6 volt 100mA" wall brick that outputs 9 volts into a device drawing, then 45mW will be dissipated in the clamp circuit. An annoying waste of power, but not enough to cause trouble. If the device were hooked up to a beefier wall brick that would output 9 volts with a 100mA current draw, however, the clamp would have to dissipate 900mW; a much greater amount which would probably exceed safe limits. Quote Link to comment Share on other sites More sharing options...
AussieAtari Posted January 3, 2007 Author Share Posted January 3, 2007 I think I'll go out and buy a 240V to 110V adapotor at lunch time and use the US adaptor that came with the unit as I don;t want to chance anything with the FB2, heck, it took a month to get here and cost a fair bit. Quote Link to comment Share on other sites More sharing options...
AussieAtari Posted January 3, 2007 Author Share Posted January 3, 2007 I think I'll go out and buy a 240V to 110V adaptor at lunch time and use the US adaptor that came with the unit as I don;t want to chance anything with the FB2, heck, it took a month to get here and cost a fair bit. Quote Link to comment Share on other sites More sharing options...
AussieAtari Posted January 3, 2007 Author Share Posted January 3, 2007 I think I'll go out and buy a 240V to 110V adaptor at lunch time and use the US adaptor that came with the unit as I don't want to chance anything with the FB2, heck, it took a month to get here and cost a fair bit. Quote Link to comment Share on other sites More sharing options...
Dragnerok X Posted January 3, 2007 Share Posted January 3, 2007 Then again, considering that the FB1 was designed by Atari, Designed by Atari? O.k., Manufactured. Quote Link to comment Share on other sites More sharing options...
mstulir Posted January 4, 2007 Share Posted January 4, 2007 Then again, considering that the FB1 was designed by Atari, Designed by Atari? O.k., Manufactured. Manufactured by Atari? Quote Link to comment Share on other sites More sharing options...
jaybird3rd Posted January 4, 2007 Share Posted January 4, 2007 (edited) Then again, considering that the FB1 was designed by Atari, Designed by Atari? O.k., Manufactured.Manufactured by Atari? How about this ... designed and manufactured by Legacy Engineering (using a NOAC because Atari made them do it.) Edited January 4, 2007 by jaybird3rd Quote Link to comment Share on other sites More sharing options...
mstulir Posted January 4, 2007 Share Posted January 4, 2007 How about this ... designed and manufactured by Legacy Engineering (using a NOAC because Atari made them do it.) OK, that works. Quote Link to comment Share on other sites More sharing options...
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