[Coco] RF to VGA Converters...

[univax!gatech!destroyer!trantor!kandur]

Seriously Gene,
I have to turn down the contrast and brightness on my
Samsung SyncMaster 2693HM (1200x1920) LCD monitor
to get a decent 80 column picture from the GBS-8220.

Kandur

Sunday, January 11, 2015, 6:54:03 PM, you wrote:
> On Sunday, January 11, 2015 09:02:37 PM Allen Huffman did opine
> And Gene did reply:
>> > On Jan 11, 2015, at 7:24 PM, univax!gatech!destroyer!trantor!kandur
>> > <k at qdv.pw> wrote:
>> > 
>> > Sunday, January 11, 2015, 4:27:03 PM, you wrote:
>> >> I actually have a CoCo 2 and a 3. The 3 is what I'd use most of the
>> >> time.
>> > 
>> > In that case for the Coco3, I would recommend this as an
>> > inexpensive, and better solution then a RF or composite video
>> > converter. http://tinyurl.com/kavbxvj <http://tinyurl.com/kavbxvj>

>> I thought that looked familiar -- arcade conversion stuff:

>> http://www.jammaboards.com/store/cga-ega-yuv-to-vga-arcade-hd-converte
>> r-pcb-gbs-8220-gbs-8220.html

>> $40 and a bit of cabling? Do you get all the proper RGB colors?

> More or less Allen.  I have one, and my overall experience was that its 
> output was at too low a level to give a decent pix, like the contrast was  
> turned down.  And, the gime seemed to be capable of running it from limit 
> to limit, and losing detail in clipping.  Then Roy, bless his heart, 
> started making his adapter, and I am still using his 2nd generation 
> board, albeit with a 15" lcd P.O.Sale monitor I bought on ebay a few 
> months back for $65.  So I have a decent pix now, almost on a par with my 
> 8CM515 maggy before the scan tranny let out all the smoke.

> If I wasn't in the midst of making that blanket chest on the fall '14 
> Fine WoodWorking, I would probably be hacking up a new mouse driver 
> because this POS monitor also has a touch screen output.

> I called N.A.P., looking to see if they still had any scan transformers, 
> and the guy on the phone said he had never heard of an 8CM515.  They I 
> expect, probably sold at least a million of then to us coco and amiga 
> people back in the late '80's. Didn't make any diff, there were no 
> references extant in his parts lists, so it never existed. N.A.P. 
> (Magnavox) made a good monitor, somewhat brighter and many times sharper 
> than the shacks CM-8, which FWIW was also made by N.A.P. An 80 column 
> screen was absolutely readable on it.
>  
>> --
>> Allen Huffman - PO Box 22031 - Clive IA 50325 - 515-999-0227
>> (vmail/TXT only) Sub-Etha Software - http://www.subethasoftware.com -
>> Established 1990! Sent from my MacBook.

>> P.S. Since 4/15/14, I have earned OVER $600  in Amazon gift cards via
>> Swagbucks! Use my link and I get credit:
>> http://swagbucks.com/refer/allenhuffman


> Cheers, Gene Heskett
> -- 
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page <http://geneslinuxbox.net:6309/gene>
> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS