Re: Question

On 11/23/2013 10:08 AM, Bil Herd wrote:
> I gave a description of the problem also.
>
> http://c128.com/phase-locking-vdc-vic-chip-short-version

74LS629 and MC4044P, where have we seen those before...? ;)

Looks like you took the PLL from the C64 and modified it.

With this board in place, is the 8563 still running at 16MHz or getting 
slightly overclocked to use 16x CPU-Clock (1.02 MHz?)?

BTW: The 74LS629 is still easily available, but the MC4044P is getting 
hard to find.

  Gerrit






>
>
> -----Original Message-----
> From: owner-cbm-hackers@musoftware.de
> [mailto:owner-cbm-hackers@musoftware.de] On Behalf Of Gerrit Heitsch
> Sent: Saturday, November 23, 2013 2:06 AM
> To: cbm-hackers@musoftware.de
> Subject: Re: Question
>
> On 11/23/2013 07:01 AM, Bil Herd wrote:
>> Just curious; do things that don't really exist or have a name or
>> number have any value in the eyes of collectors?  I just found the 3"
>> square PCB that saved the 85 CES show by phase locking the 8563 VDC to
> the VIC chip.
>> The PCB cost $1200 of 1985 dollars as it was same day turn.
>>
>> I laughed out loud when I found it.
>
> Could you post a photo somewhere?
>
>    Gerrit
>
>
>
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>
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>


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