hayes chronograph - test-drb@ccmp.vtda.org

24 Jul 2001

Ethan:

...
 >I take it the day of the week display is part of
the flourescent,
>not LEDs behind the "Sun...Sat" labels, right? 
	Yes, this is the case. I would guess that the LSI multiplexes the
digits without any other drivers. The DOW labels are probably treated as
segments of a 7th digit by the LSI

Rich

==========================
Richard A. Cini, Jr.
Congress Financial Corporation
1133 Avenue of the Americas
30th Floor
New York, NY 10036
(212) 545-4402
(212) 840-6259 (facsimile)

-----Original Message-----
From: Ethan Dicks [mailto:ethan_dicks@yahoo.com]
Sent: Tuesday, July 24, 2001 2:24 PM
To: classiccmp(a)classiccmp.org
Subject: RE: hayes chronograph

--- "Cini, Richard" &lt;RCini(a)congressfinancial.com&gt; wrote:
...
  Hi:

 	I have one of these clocks, but haven't opened it in a while. I
 believe that it's an extruded Al case that would prevent you from expanding
...
  the case vertically. If it weren't for the
display, the PCB could fit in the
...
  Hayes 300 case. 
That makes sense, given how that style of case goes.

...
  	As far as the display, it looks to be a Futaba clock
display.
 Problem is is that no one carries them. Jameco has one, but it's only
 4-digits. 
I've never tried to hack right to a VFD.  I've only ever played with
ones that have controllers.

I take it the day of the week display is part of the flourescent, not
LEDs behind the "Sun...Sat" labels, right?

...
  	If I were retrofitting/rebuilding the clock, and $$$
wasn't an
 issue, I'd use a Noritake serial VFD display with a custom font and a PIC
 for the clock. 
That's more or less what I'm leaning towards.  I have a Matrix Orbital 20x4
VFD from Linux Central that is currently mounted behind a disk drive bay
bracket.  It is easily movable.

-ethan

=====
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