Re: //e pwr suply to //gs pwr supply convert

[Rubywand <rubywand@swbell.net>]

Brad Weelborg writes ...
> 
> can anyone tell me the color codes or whatever to change a file://e power
> supply to work on a
> file://gs  i know it has been done by steve bungie and others....and i also
> know that a // plus or // e
> power supply has enough power to run a // gs motherboard ( i have been
> running an online telnetable
> apple file://gs off a t1 as a door off my main system for 2yrs and the gs
> has been up 10yrs plus...if
> interested in telneting into my 80's bbs just go to www.lost-gonzo.com and
> telnet into my system)
> 
> so....that aside..i need a guick/sloppy fix for this...i was thinking of
> simply cutting off the file://gs plug and attaching it with wire nuts to the
> file://e power supply and just having it sit outside the system
> 
> i should just get steve bungies converted ibm power supply setup...(what is
> his email/www site again if anyone knows)
> 

 ....

     If a power supply does not show lead color and voltage somewhere on the
casing, your best bet is to make your own chart. You can get a Volt meter and
measure the outputs to ground-- usually, black or green = GND.

     For Apple II power supplies with the old II--//e connector, the following
will help identify which leads carry which voltage:


Apple II+/IIe Power Socket (on motherboard)


                                  Power Supply Output Ratings
         _________
        /         \               +5V @ 2.50 Amps (continuous)
  -12V  |  5   6  |   -5V         -5V @ 0.25 Amps (continuous)
        |         |              +12V @ 1.50 Amps (continuous)
   +5V  |  3   4  |  +12V        -12V @ 0.25 Amps (continuous)
        |         |
   GND  |  1   2  |   GND
        |_________|




     With the typical small power supply, clipping a 50 Ohm resistor across your
Volt meter leads is likely to supply enough load for measurements. For a larger
power supply-- like a 100-250 watt unit from a PC-- you will want to load the +5V
output with a 2-5 Ohm 20 watt resistor connected from +5V to GND. (GND will almost
always be Black and +5V will be the heaviest lead or the lead repeated most
often-- probably red or yellow.)

     You can find several low-cost power supplies suitable for fitting into a IIgs
in the Jameco catalog. Use good heavy leads (like at least 14 gauge) for +5V,
+12V, and GND. This will help to prevent power supply failure. If you are going to
load the IIgs with boards, the +5V and GND leads shoud be 12 gauge or heavier.

     A Buggie (505-863-2390) external power supply is another option.



Rubywand