[Coco] Coco 2 RF

[gene heskett]

On Tuesday, February 21, 2012 11:56:54 AM Mike Rowen did opine:

> I'm intending to build and test this circuit on a CoCo 2 this weekend.
> I'll post my results here to let you know if/how it works.
> 
> Cheers,
> -Mike
> 
> ---------- Forwarded message ----------
> From: Mark Ormond <markormond at mtxsystems.com>
> Date: Tue, Feb 21, 2012 at 7:56 AM
> Subject: Re: [Coco] Coco 2 RF
> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> 
> 
> I copied the board layout of one I have in mine. The copied schematic is
> currently untested.
> Why don't you try it and let me know if there are errors.
> I can post pics of the original board also.
> 
> 
> http://www.svfdtn.com/cbm/coco2comp.jpg
> 
> 
> 
>  GND = GND
> 
>  G = Pin 8 of MC1372P
> 
>  Y = Y on Modulator
> 
>  S = S on Modulator
> 
>  R = Left side of C32 (Looking from front)
> 
> 
> 
>  Later,
> 
>  dabone

Hi Guys;

I looked at your schematic, but one thing I don't see is a src of bias 
drive for the bottom NTE123ap.  So that isn't going to do much unless that 
coupling capacitor comes from a positively biased point, and is a pretty 
leaky capacitor, something they are not supposed to do.

Cheers, Gene
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<joeyh> netgod: er, are these 2.2.0 packages 2.0.0pre9 or do you have a
        direct line with the gods?
<netgod> joeyh: i have the direct line