I seem to recall two options: 1. An SMT No-Slot-Clock (aka Dallas Semiconductor DS1216E, aka Dallas Smartwatch), which was typically used in a IIe by removing the CD or EF ROM chip on the motherboard and "sandwiching" the NSC between the ROM and the motherboard. Then you needed to patch ProDOS to read from the NSC. The beauty of it was that you didn't need to waste a valuable slot on a clock, but the disadvantage was you needed a different patch every time a new copy of ProDOS 8 came out. I seem to recall years ago that a "universal" patch came out that covered all version of ProDOS 8. I had/have one of these, and it worked brilliantly. It was around $70 new.
On a IIc, you had to open the case and remove one of those ROM chips. I believe the IIc didn't have ROM chips labeled CD or EF, but it had another one that worked just as well. The only problem was you had to shave off a bit of plastic off of an internal brace for the now taller stack of chips to fit. I would imagine fining a NSC to be tough these days. I don't think the battery was user-servicable, but it may have drawn a recharge from the computer. 2. Applied Engineering offered a brick-sized "dongle" that plugged into the modem or printer serial ports. Then you plugged the modem or printer into the AE clock. I think it was called "TimeMaster IIC" and went for (I can't believe I am remembering this) $149. It too needed a patched ProDOS 8 to work, and I don't recall if a "universal" patch was available. Ebay searches on both of these reveal nothing. I hope this helps. Virtually, Warren Ernst former Beagle Bros teceh support current Technical Editor, PC Magazine --------snip------------ >Does anyone know of a clock for an Apple //c? I recall using an >internal clock card with the ][e and hoped to find something similar >for my //c. -- Apple2list is sponsored by <http://lowendmac.com/> and... / Buy books, CDs, videos, and more from Amazon.com \ / <http://www.amazon.com/exec/obidos/redirect-home/lowendmac> \ Support Low End Mac <http://lowendmac.com/lists/support.html> Apple2list info: <http://lowendmac.com/lists/apple2.html> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/apple2list%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
