Path: news1.icaen!news.uiowa.edu!news.physics.uiowa.edu!math.ohio-state.edu!news.cis.ohio-state.edu!newsfeed.berkeley.edu!cyclone.swbell.net!typhoon01.swbell.net.POSTED!not-for-mail Message-ID: <3756E2D7.C310E7AD@swbell.net> From: Rubywand Reply-To: rubywand@swbell.net X-Mailer: Mozilla 4.51 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.sys.apple2 Subject: Re: //e pwr suply to //gs pwr supply convert References: <7j5907$7f9$1@remarQ.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 64 Date: Thu, 03 Jun 1999 15:17:27 -0500 NNTP-Posting-Host: 207.193.17.29 X-Complaints-To: abuse@swbell.net X-Trace: typhoon01.swbell.net 928440964 207.193.17.29 (Thu, 03 Jun 1999 13:16:04 PDT) NNTP-Posting-Date: Thu, 03 Jun 1999 13:16:04 PDT Organization: SBC Internet Services Xref: news1.icaen comp.sys.apple2:148298 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