Hitek
  • Member for 3 years
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Player 1 / Player 2 input for Space Invaders
Accepted answer
8 votes

Many arcade games came in upright and cocktail versions, using the same PCB assembly for both versions. They usually had one dip-switch position on the circuit board to designate the cabinet type, ...

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Where can I find a 26-pin flex flat cable for the floppy drive in a Toshiba T19x0 laptop?
3 votes

Most laptops of that time period used a straight through flex cable with the same pitch connector on both ends, so yours is custom made for that series/model. While there may be other laptops that ...

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Does the Sega Megadrive 2 have built-in protection against reverse polarity
2 votes

Based upon a quick look at the PAL Megadrive II schematics, it appears as if the the power input is first routed through a common mode choke(for which polarity does not matter) before it goes onto the ...

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Exit NitrOS9/OS9 EDIT command without saving file
2 votes

While I am not familiar with OS9, I did read the linked PDF. As stated in the question's documentation quote, specifying input and output files upon opening the editor is optional. The edit will ...

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Using generic SMPS adaptor on old IBM Thinkpad makes strange symptoms
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5 votes

I would say that it is more likely that the laptop was shelved because it's internal power circuit is at least partially shorted. This would explain the symptoms observed from the power supply LED. ...

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Discharging an AT power supply for maintenance
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11 votes

Normally you would just let it sit for a few minutes. While the output capacitors may have some residual charge, the most any one would have is 12 Volts, which isn't really dangerous to your fingers. ...

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ACA1221 cooling
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3 votes

The manufacturer's wiki shows that the ACA1221 provides a port to supply power to the RapidRoad USB accessory through a simple jumper cable. From the end of the third paragraph in the Clock Ports ...

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Creating Null Modem Connection between two C64s?
3 votes

I know this is anecdotal, but here is my personal testimony: I built many circuits interfacing with the User Port in my teens (mostly digital control circuits using the data lines), and I'm pretty ...

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Fixing the horizontal size(width) of an old CRT monitor (Zenith ZCM 1390-E)
0 votes

Disclaimer: Do NONE of the following unless you are comfortable with the particulars of a given described procedure!!!! You have been warned!!!!! While I understand that this is a rather old ...

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