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#1 2016-11-20 19:31:54

chrisnova777
Member
Registered: 2015-11-15
Posts: 2

announcing a new clone of the GeeThree Stealth modem serial port

i got a message today announcing a new clone of the GeeThree Stealth Port modem serial port !!!!!!!!

http://www.oldschooldaw.com/forums/index.php?topic=3403
http://alexhixon.com/jamport/
http://alexhixon.com/jamport/tech.html

thanks to Alex Hixon for this tremendous addition to the vintage mac midi sequencing community!
this is amazing as the supply of geethree serial adapters seems to have literally dried up latelyl

im honoured if my site has in anyway inspired Alex to create the jamport!!!!!!!

please support Alex by purchasing one of his modem/serial adapters currently only for AGP G4' macs

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#2 2016-11-21 19:59:47

MacOS Plus
Member
Registered: 2015-12-09
Posts: 108

Re: announcing a new clone of the GeeThree Stealth modem serial port

This is quite interesting to see done.  I'm still in the market for more serial port adapters like this so I will probably buy some of them.

  There's also the possibility that versions can be made for the powerbooks, like I always hoped for.  The G4 Stealth Serial Port card will fit in the slot on a Pismo G3 and function, as I've tested myself, but the connector for the cable lead won't physically clear the heatsink above it (it would need to be on the underside of the PCB or possibly relocated to the other end).  A modification for this should be quite simple, although where to actually route the cable and the fact that it would ideally be detachable could be a challenge.  The most direct route would be through an opening in the side vent using a fine-pitch cable and a tiny connector on the PCB.  Feeding it out the phone jack opening would require an excessive amount of disassembly.

  I'd really appreciate a solution for the G4 Powerbooks, as I have a 667 VGA and a 1GHz Ti.  There also needs to be a proper way of installing the external port in a G4 Powermac's modem port location - I've made it work 'sorta'.  Wasting a PCI slot with the Stealth backplate, as originally intended, is silly, although I understand the reasoning that the average user couldn't be expected to detach the CPU heatsink to get at it.

Currently I own version 1 (mounts in modem frame) and 2 (replaces modem frame) of the G3/Yikes Stealth Serial Port, a G3/Yikes G-port (like Stealth version 2), and two G4 Stealth Serial Ports, version 1 with a removable cable and slightly longer PCB and version 2 with a soldered cable.  (Sounds like a lot already, but I have a lot of MIDI interfaces to go round.)  I don't have the frame and cable extension for my V.1 Stealth, so it's not in service yet.

Last edited by MacOS Plus (2016-11-21 22:44:38)

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#3 2016-11-22 05:16:11

chrisnova777
Member
Registered: 2015-11-15
Posts: 2

Re: announcing a new clone of the GeeThree Stealth modem serial port

he does mention powerbooks on his site... so maybe he knows its possible? i didnt know the powerbooks could have a modem/serial adapter... as this was never publicized on any of the other manufacturers sites (ie griffin, geethree etc)

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#4 2016-11-23 07:25:07

MacOS Plus
Member
Registered: 2015-12-09
Posts: 108

Re: announcing a new clone of the GeeThree Stealth modem serial port

chrisnova777 wrote:

he does mention powerbooks on his site... so maybe he knows its possible? i didnt know the powerbooks could have a modem/serial adapter... as this was never publicized on any of the other manufacturers sites (ie griffin, geethree etc)

  I'm not aware of any company ever talking about or offering one, but the modem in the Pismo is a standard-issue Powermac G4 modem so that's why the G4 Stealth connects and works there.  The only problem is making it clear the heatsink and sorting out the best way to run a cable out of the case.  I have to think the Powerbook G4 modem interface is electrically identical or similar, just with a different connector and PCB size/proportions, although it changes location in the chassis between different models.  Now that someone is actually building a clone board it opens up such possibilities that were never considered or made it to market prior.  Adding purpose-built serial ports to these Powerbooks would be fantastic!  The current clone board could be modified to provide a standardized layout that would fit all G4 Powermac towers and the Pismo Powerbook with only one version.  A potential board for the TiBooks would be a completely different animal though, if it is truly possible.  Just throwing that thought out there.

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