A Very Unique Plus

[Concorde1993]

Here are some pics of the Plus with the BNC port. Also, notice the serial number. I have no idea when it was built, as the original serial number was removed.

Btw, I have not turned it on yet, as the housing is currently being held together by two screws inside the carrying handle. But from the pics I saw in the advertisement, this unit was working.

 

[Concorde1993]

More pics:

 

[Concorde1993]

More pics:

 

[Concorde1993]

The last batch:











I have about 20 more, but I think I have adequately demonstrated my point.

 

[Mac128]

Fairly common at the time video output, providing mirroring for a larger external monitor. Apple even offered such a card themselves according to TIL articles, but third party cards were mor popular. This requires a special monitor which syncs at the Macs video frequency, so don't expect you will be able to plug it into your NTSC TV, even with the proper cable adapters.

It may be working now, but it sure looks like it had a major burn-out at some point.

 

[Concorde1993]

This requires a special monitor which syncs at the Macs video frequency, so don't expect you will be able to plug it into your NTSC TV, even with the proper cable adapters.

What about a Commodore NCC-1701 monitor? I have a BNC-to-RCA adapter, or an Apple monitor, like the Multiple Scan 17? (VGA to RCA adapter to BNC)

Did these cards require any specific software in order for the Mac to recognize the presence of an external monitor, or did it automatically sync with the external monitor? My knowledge on such cards is very limited, so my apologizes for asking any redundant questions.

It may be working now, but it sure looks like it had a major burn-out at some point.

Yeah, I wasn't too thrilled when I saw the damage inside the case. The bottom of the CRT, and the top housing of the floppy drive look pretty black too, so my expectations of this compact Mac lasting a couple of hours even with my Kensington System Saver is very low. The analogue board may require a full capacitor replacement in the near future, but we'll see. All of the other stuff I got from the haul appears to be in working condition after a couple of hours of use, so it isn't much of a loss if this one happens to go on the blink.

 

[Mac128]

Search for terms like, video NTSC TTL under compact mac and you will find several threads discussingnthe compacts video requirements.

There is nothing special required to get the video output from the Mac, it merely converts to a standard TTL signal and mirrors the MACs output signal. As for what monitor is compatible, those other threads or, other members may be more helpful. but I do not believe either of those two monitors will sync at the compact Macs unique video rate with a TTL signal.