Re: Covox Voice Master

From: Terry Raymond <traymond20_at_gmail.com>
Date: Tue, 11 Oct 2016 09:57:43 -0600
Message-ID: <CAEFCF-qjRchXJiutKHh1vvoOYze+1V+WFsZrczrN-kwE1d-FGQ@mail.gmail.com>
Hi Jim,

Please explain (im new to all Electronics)
Input = voltage or Joystick input in this device ?
Cap, I assume the round capacitors.
External Resistor = is this a resistor ladder or 5bit ADC
RC Network ?

I might look for info on the Commodore files (Bo Zimmerman's site)
Google Digitizers or 5 ADC etc.
I will try to research this more too, but thanks guys for the info.

Terry Raymond
On Tuesday, October 11, 2016, Jim Brain <brain@jbrain.com> wrote:

> Wow, talk about a blast from the past...
>
>
> Since that time, I have confirmed that you get 512 cycles per sample.  256
> with the input tied to ground to completely discharge the cap, and then 256
> left floating to the external resistor can charge the cap via the RC
> network.
>
>
> Jim
>
>
> On October 11, 2016 at 10:54 AM groepaz@gmx.net
> <javascript:_e(%7B%7D,'cvml','groepaz@gmx.net');> wrote:
>
>
> On Tuesday 11 October 2016, 15:48:16 smf <smf@null.net
> <javascript:_e(%7B%7D,'cvml','smf@null.net');>> wrote:
>
> Ok, looks like this was answered a long time ago....
>
> https://groups.google.com/forum/#!msg/comp.sys.cbm/
> G0CJgGPLei0/MgxDU6GZrz0J
>
> :) another problem is that teh paddle ADC doesnt translate an external
> voltage
> to a value, but it measures the resistance of an external resistor - which
> makes using it for sampling audio significantly more complex.
>
> --
>
> http://www.hitmen-console.org http://magicdisk.untergrund.net
> http://www.pokefinder.org http://ar.pokefinder.org
>
> Americans always do the right thing, once they have exhausted all other
> possibilities.
> <Winston Churchill>
>
>
>
> Message was sent through the cbm-hackers mailing list
>
> Message was sent through the cbm-hackers mailing list


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Received on 2016-10-11 16:00:48

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