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More info on hacking Namco 5-in-1 to arcade controls?
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RandyT:

--- Quote from: DreamArcades on March 30, 2005, 04:44:17 am ---Let's not get in a fight here, but I must say that you are mis-informed. The problem wasn't the transformer's voltage; it probably wasn
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quarterback:

--- Quote from: shawnzilla on March 30, 2005, 12:13:56 pm ---Does anyone know the email address for this guy:
http://www.bishopzone.com/bishopzone/projects/tabletops/tabletops.html

His plans for bartops seem to be the nicest I've seen.
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The Tron is my favorite:


You do realize bishmasterb's a BYOACer, yes?
DreamArcades:

--- Quote from: RandyT on March 30, 2005, 11:48:40 pm ---

The circuitry is called a regulator and in cases like these, where you have limited space or cooling ability,  it's built into the power supply, not on the board.  Ever wonder why you always see the warnings to use "only the AC adapter supplied/designed for use with the product"?  This is why.

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I wouldn't expect too much heat from one of these; a one-amp regulator would be overkill. Add a capacitor between the high and low lines and you should be good to go. You could even add this to your Namco unit yourself for a buck or so. I just figured this was beyond most readers. Maybe I should give BYOAC users more credit.


--- Quote from: RandyT on March 30, 2005, 11:48:40 pm ---Bahh.  Use a regulated power supply and don't go over the 6 volts these things are looking for and all will be right with your world.  Transients or not.

I had one running for over a week straight without even a hiccup. 

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Heck, it's your $15, I'm just sounding a note of caution.
-Mike
MinerAl:

--- Quote from: shawnzilla on March 30, 2005, 08:40:57 am ---
--- Quote from: markrvp on March 28, 2005, 06:51:58 pm ---For Pole Position, the ball top rotates left/right to turn a POTENTIOMETER inside the case.  There is a return to center spring that keeps it centered.  Playing Pole Position with this knob is actually easier than with a spinner in MAME (In My Humble Opinion).  Anybody hacked that, yet?  If so, what controls did you replace it with on your CP?

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I'd be very intersted to know if anyone has done or thought of a hack for the Pole Position pot.

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I used the stock stick as a shaft (with a little steering wheel on top) for only the steering pot, and a T-Stick plus for the actual joystick controls. 

Made a thread about it.  Here it is.

I used a variable voltage wall wart set to 6V (verified by a voltmeter).  There is/was not a plug hole for it on the Ms. Pac/Galaga 5-in-1.  I had to splice it into the wires from the batery box.  Not challenging, but not as easy as plugging it in.
RandyT:

--- Quote from: DreamArcades on March 31, 2005, 01:58:55 am ---
--- Quote from: RandyT on March 30, 2005, 11:48:40 pm ---

The circuitry is called a regulator and in cases like these, where you have limited space or cooling ability,  it's built into the power supply, not on the board.  Ever wonder why you always see the warnings to use "only the AC adapter supplied/designed for use with the product"?  This is why.

--- End quote ---
I wouldn't expect too much heat from one of these; a one-amp regulator would be overkill. Add a capacitor between the high and low lines and you should be good to go. You could even add this to your Namco unit yourself for a buck or so. I just figured this was beyond most readers. Maybe I should give BYOAC users more credit.

--- End quote ---

A capacitor only smooths out oscillations and noise to give cleaner DC power.  The capacitors you see in "surge protectors" are sacrificial.  They don't stop the surge, they self-destruct before it can be passed to stuff you care about. I.e. they only work once....

If your AC voltage fluctuates they way you described, a capacitor will do nothing to protect the unit.  A regulator is what you need here.

Also, regulators create a fair amount of heat as they require at least 1 volt more going in than the desired regulated votage output.  That extra volt is converted to heat and when it's in a small case with no ventilation it will get quite warm.  And the more current you pull through it, the more heat that extra volt creates.

Again....regulated power supply.

RandyT

 
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