Color Pivots (#0277/0233) Q&A wrote:Q: Is my pivot card compatible with other displays?
A: The color pivot cards will drive a standard fifteen-inch portrait display, and since the cards also support an 832x624 resolution, they will also work with some 16 or 17-inch Macintosh compatible displays. Naturally, the displays won't pivot, but you will have a proper image.
If anybody has an SE/30 that's in need of an extended desktop (apparently, this class would include ALL SE/30s, the stock 9" single bit periscope being as unsuitable for any serious work as was the case of my SE/Radius 16 GraphicsWorkStation back in the day!) I'd like to verify that these cards will run fine in the '/30. I can't imagine they won't and they'd be a LOT more useful in a '/30 than the SE/30 Direct slot version of the card! I cannot imagine that there's not a far more elegant SE/30 Multicard solution than the kluges posted on gamba or that there can't be a way to create a new approach to the megabuck 3 PDS slot adapter card documented there!
Even better if it can work with my Ethernet adapter.
Trash80toHP_Mini wrote:LOL! I was beginning to think nobody was reading this thread!
Trash80toHP_Mini wrote:can a DownClocking Crystal Can Hack spit 640 x 480 x 8 bit @ 60 Hz outta' those headers?
National Semiconductor datasheet wrote:The LM185/LM285/LM385 are micropower 3-terminal adjustable band-gap voltage reference diodes. Operating from 1.24 to 5.3V and over a 10 mA to 20 mA current range, they feature exceptionally low dynamic impedance and good temperature stability. On-chip trimming is used to provide tight voltage tolerance. Since the LM185 band-gap reference uses only transistors and resistors, low noise and good long-term stability result.
Conquest Thread wrote:As an avid Radius collector, I couldn't pass up this (Darker Than PowerBook ) Gray LCD on eBay.
It's a very nice example of an early 15" LCD that has its roots in both the Mac and VGA Video Worlds.
The Mac Connector opening has sheet metal behind it . . .
. . . but the LCD still syncs to ALL the resolutions put out by IIsiRadiusColorPivotII & IIsi!
Native Rez is higher at 1024 x 768!
Re: Pivot mono + Pivot color card?
Post by zuiko21 » 13 Feb 2012, 17:05
Now that you mentioned the Radius Color Pivot IIsi...
I got one of these, without the external connector. According to my probing with the 'scope, the 15-pin header on it matches Apple's DA-15 socket, as commonly numbered -- at least, grounds are where they should and so are the sync signals; and the R, G & B channels supply signal out of the sync periods. But no matter what sense code I hooked, it seems to send a horizontal sync of about 69 kHz -- compatible with both 21" and Portrait modes. Couldn't get my 'scope to hold on vertical sync, so I can't confirm if it's 75 Hz or whatever.
On the software side, the card shows up on Slot Info as slot 9 or A, depending on the JP1 setting. But not in the Monitors control panel Testing done on a IIsi via the built-in video.
BTW, a Dayna E/si30 ethernet card I have (also without connectors) hooked to the pass-thru PDS on the Radius, will prevent booting at all, no matter the jumper settings. The Dayna alone shows up fine as Slot 9.
zuiko wrote:Who, me? The problem is that I don't have any cable between the card's pin header and an external connector...
I'll try cutting a (long) female pin header and soldering the cables on the PCB-intended pins
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