[Coco] CoCo2 Composite Boards (update)

[Kip Koon]

Hi Ed,
Though I will probably only use color, I like all my options open if the capability is there so my vote is for everything to be populated on the A and B type Composite PCBs - at least the ones I would like to get.  :)  Thanks do creating this product.

Kip Koon
computerdoc at sc.rr.com
http://www.cocopedia.com/wiki/index.php/Kip_Koon



-----Original Message-----
From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Zippster
Sent: Wednesday, March 04, 2015 10:42 AM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] CoCo2 Composite Boards (update)

Another update for everyone interested in the composite boards…

I ordered 50 PCBs for the A type yesterday, so should be about 2 weeks on those.
After going over some prices I’ve decided I’m going to offer these at $25 ea assembled.

I’ll be ordering the B boards soon.  After putting an oscilloscope to the board I can see the signal isn’t exactly where I want it, so I have a little adjustment to make there.
Shouldn’t require a board redesign though, probably just a change in a couple of resistor values.
I believe the difference is due to slight differences power supply voltages in the two motherboard types.

A question for people wanting a B board.  Is the switch for B&W mode something people will want?  It adds about $8 to the overall cost.  I’m thinking about just offering this one as color only, though the connections will be on the board, so you could run your own switch.
Some shielding will also be recommended for the B board if using B&W mode.

- Ed








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