[Coco] The chinese crt9128 works!

Luis Antoniosi (CoCoDemus) retrocanada76 at gmail.com
Fri Oct 18 19:18:24 EDT 2013


there is a mistake on the previous schematics I did. But the resistors are
all used.

There is one resistor under the RCA connector. In this pic you can see one
of its end under the RCA:

https://pbs.twimg.com/media/BUpSDG7CQAAvxfJ.jpg:large



On Fri, Oct 18, 2013 at 6:21 PM, Tormod Volden <lists.tormod at gmail.com>wrote:

> On Fri, Oct 18, 2013 at 11:58 PM, Tormod Volden wrote:
> > On Fri, Oct 18, 2013 at 4:21 PM, Luis Antoniosi (CoCoDemus) wrote:
> >> I will proceed with the prototype in wire-up and they I will make few
> test
> >> cards. I'll be putting the card on osh park in case you guys want to
> make
> >> your own.
> >
> > Thanks for sharing this! Just looked at your design again. You are not
> > hooking up the intensity signal (INTOUT, pin 8), isn't that missing an
> > opportunity?
>
> On what do you base the choice of resistor values (22 and 25 Ohm) on
> the output stage? The Disto design uses 470 Ohm to ground and 10 Ohm
> in series. On your PHB board I think I can see 220 (or 330?) and 15
> Ohm close to the output socket although I am not sure where in the
> circuit they are.
>
> Tormod
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco
>



-- 
Long live the CoCo



More information about the Coco mailing list