Re: Mac Classic Y1 Oscillator replacement
Is this the right board? http://www.nightfallcrew.com/wp-content/gallery/apple-macintosh-classic/IMG_1215.jpg On Fri, Dec 21, 2018 at 11:20 AM Christian Wacker wrote: > My Classic Mac went to a checkerboard after I dusted the system. Time for > replacement capicitors and a good clean. > On my board, my Y1 oscillator is very corroded and damaged. I'm struggling > to find it's specs (Can't read it) to get a replacement to attach while I'm > doing the caps. > Anyone have tips for where to start? > > -- > -- > - > You received this message because you are a member of the Vintage Macs > group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to vintage-macs@googlegroups.com > To leave this group, send email to > vintage-macs+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to the Google Groups > "Vintage Macs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to vintage-macs+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: 68Pin SCSI drives in a 68K Mac?
> On 21 Dec, 2018, at 10:43 pm, James Zeun wrote: > > …a newer mode of SCSI, which the 8500 doesn't recognize. Was that a load of > old cobblers? :-/ As far as I'm aware, all parallel-SCSI implementations are expected to support plain old Asynchronous Narrow mode, which is what most Macs use. Support for faster modes is optional and negotiated over the bus in Asynchronous Narrow mode. As noted, most drives are not Apple "blessed" and will require a third-party formatter, such as Silverlining. I think you can get that from Macintosh Garden. Some of the oldest Macs can't access beyond the first gigabyte from their ROMs. The workaround is to make a 1GB System partition at the start of the drive, and one or more separate data partitions using the remaining space. - Jonathan Morton -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: 68Pin SCSI drives in a 68K Mac?
> On Dec 21, 2018, at 12:43 PM, James Zeun wrote: > > When I hooked it up my 8500, it didn't see it. Don’t forget that you need a formatting tool that recognizes drives not made by Apple. - Dylan -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: 68Pin SCSI drives in a 68K Mac?
As this kind of happened to me a few years ago. I wouldn't mind asking a question myself. I bought one of the cheap 40 to 80 SCSI adapters, so I could use a 73gb (think that was the size, I know it's 70+GB). When I hooked it up my 8500, it didn't see it. I posted about it on 68kmla and the reply I got back. Was that some newer drives are not visible to the Mac, because they are based on a newer mode of SCSI, which the 8500 doesn't recognize. Was that a load of old cobblers? :-/ On Fri, 21 Dec 2018, 7:30 p.m. Jeff Walther, wrote: > Just realized, what I was writing was actually mostly applicable to the > SCA 80 pin drives. > > On a 68 pin drive, there is usually a provision for on-board termination > on the hard drive itself, unless it is a fairly modern U2W or newer SCSI > drive. > > Anyway, if there is on-board termination on the drive, just put the drive > on a cheap adapter, make sure it's at one end of the SCSI chain, and enable > the on-board termination on teh drive and you should be good. > > You only need a drive with distinct upper byte termination if you're going > to try to put the drive in the middle of the SCSI chain. > > My apologies for any confusion. It's been years since folks have > regularly needed SCSI advice, so I'm a little rusty. > > -- > -- > - > You received this message because you are a member of the Vintage Macs > group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to vintage-macs@googlegroups.com > To leave this group, send email to > vintage-macs+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to the Google Groups > "Vintage Macs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to vintage-macs+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: 68Pin SCSI drives in a 68K Mac?
Just realized, what I was writing was actually mostly applicable to the SCA 80 pin drives. On a 68 pin drive, there is usually a provision for on-board termination on the hard drive itself, unless it is a fairly modern U2W or newer SCSI drive. Anyway, if there is on-board termination on the drive, just put the drive on a cheap adapter, make sure it's at one end of the SCSI chain, and enable the on-board termination on teh drive and you should be good. You only need a drive with distinct upper byte termination if you're going to try to put the drive in the middle of the SCSI chain. My apologies for any confusion. It's been years since folks have regularly needed SCSI advice, so I'm a little rusty. -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: 68Pin SCSI drives in a 68K Mac?
> On 21 Dec, 2018, at 9:27 pm, Jeff Walther wrote: > > In order to do it right, you must get an adapter which includes a provision > to terminate the upper data byte. If you do not, then the upper data byte > on the drive connector will not be terminated and while this often does not > cause problems, it is not correct SCSI configuration. Another small wrinkle is that "wide" SCSI supports IDs 0-15, while "narrow" SCSI only has 0-7 (of which 7 is normally reserved for the controller). You'll need to make sure a "wide" drive is set to a low ID that the Mac can physically access. - Jonathan Morton -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: 68Pin SCSI drives in a 68K Mac?
On Thursday, December 20, 2018 at 7:34:44 AM UTC-6, Pizzaboy192 wrote: > > Has anyone successfully run a modern 68Pin SCSI drive in a vintage Mac? > I've got about 50 from old servers at work, varying in size from 3GB up to > 72GB and most still work. > Yes, many people have done this, including adapting the 80 pin SCA drives, which are wide just like a 68 pin drive, but use a connector meant for server applications and convenient for hot-plugging. However In order to do it right, you must get an adapter which includes a provision to terminate the upper data byte. If you do not, then the upper data byte on the drive connector will not be terminated and while this often does not cause problems, it is not correct SCSI configuration. SCSI voodoo does not happen because SCSI does not work when it should. SCSI voodoo happens because often SCSI still works, when it should not. Anyway, the $3 adapters don't have any provision on them for termination. The adapters with termination are typically closer to $20. This doesn't make much sense, because its just the addition of some resistor packs. If they can sell the cheaper adapters for $3, then terminated adapters shouldn't cost more than $10. We had a long discussion about this over on 68kmla.org some years ago. Some stuff became inaccessible after the latest forum update, and that discussion might be old enough to have been vulnerable, so I can't guarantee it's still accessible. Jeff Walther Jeff Walther -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Mac Classic Y1 Oscillator replacement
My Classic Mac went to a checkerboard after I dusted the system. Time for replacement capicitors and a good clean. On my board, my Y1 oscillator is very corroded and damaged. I'm struggling to find it's specs (Can't read it) to get a replacement to attach while I'm doing the caps. Anyone have tips for where to start? -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Compatible internal floppy drives for Mac Classic?
It failed on verification. Unfortunately this project is on hold until later since my board has finally suffered the checkerboard boot pattern. I'll need to do a recap on it before I investigate the floppy drive further. On Thu, Dec 20, 2018 at 4:36 PM NODEraser wrote: > On Thu, Dec 20, 2018 at 5:31 AM Christian Wacker > wrote: > > > > Thanks for those tips. It does accept a floppy and attempts to read it, > but all attempts to do anything to the disc fail. I haven't had a chance to > floppy-ectomy the unit yet to inspect it up close but we'll see what my > lunch break at work looks like today. I've verified the Disc is OK in the > only Windows box I have with a floppy and it seems to successfully read and > write those discs (Although even the Windows box struggled with the only > floppy I could initially find. Maybe I should try a new in box disc) > > > > Does formatting the disk fail? If you don't have the correct System > software version and/or the extension, the Mac won't be able to read > PC-formatted disks. Also, Macs in general were pickier about floppy > disks; a disk that works just fine on PC won't necessarily work on a > Mac, or it could fail soon thereafter on the PC after the Mac says > it's bad. > > -- > [Greg Bennett] > -Independent Carpenter, Electrician & Lighting Designer > -Purveyor of Classic Apple & Macintosh Gear > http://www.hsiprodsvcs.com/ > http://www.macshack.us/ > > -- > -- > - > You received this message because you are a member of the Vintage Macs > group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to vintage-macs@googlegroups.com > To leave this group, send email to > vintage-macs+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to the Google Groups > "Vintage Macs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to vintage-macs+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- I blog, therefore I am... I think. http://pizzaboy192.com/blog/ -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Centris DOS Compatibility
A couple of things... 1. The dos card for the Centris/Quadra 610 and the power Macintosh 6100 are both 040 PDS cards so the short answer is yes, it will work - BUT... 2. The PDS slots in the 610 and 6100 are different - so the riser cars that the dos card fits in is different. This means a few things... the dos cards for the 6100 are very plentiful and they are the faster 486 DX2-66 variety while the Quadra/Centris units are 486SX-33 units and are quite rare. I have seen two on eBay in the past five years and one was recently. Sent from my Cellcom iPhone > On Dec 21, 2018, at 5:54 AM, superstar64 wrote: > > So I’ve always considered the possibility of running MS-DOS stuff on my > Centris 660av. Does anyone know if the Centris 610 DOS Compatibility card > (that I at least think exists) would work with my 660av? And if so, where to > find one? > > -- > -- > - > You received this message because you are a member of the Vintage Macs group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to vintage-macs@googlegroups.com > To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to the Google Groups > "Vintage Macs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to vintage-macs+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Centris DOS Compatibility
So I’ve always considered the possibility of running MS-DOS stuff on my Centris 660av. Does anyone know if the Centris 610 DOS Compatibility card (that I at least think exists) would work with my 660av? And if so, where to find one? -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
