[vcf-midatlantic] Sol 20 update

Mike Loewen mloewen at cpumagic.scol.pa.us
Thu Mar 19 07:13:02 EDT 2020


    I haven't looked at the cassette circuitry yet, but will eventually get 
there. Thanks for the offer.

On Wed, 18 Mar 2020, corey cohen wrote:

> Did you calibrate your cassette interface?  I can send you a bunch of 
> software on audio files.  You can play them right in front an MP3 player, 
> iPod or smart phone.
>
> corey cohen
> u??o? ???o?
> Sent from my iPhone
>
>> On Mar 18, 2020, at 3:57 PM, corey cohen <coreyvcf at gmail.com> wrote:
>>
>> Yes.  I misunderstood, that is one way to load software.
>>
>> corey cohen
>> u??o? ???o?
>> Sent from my iPhone
>>
>>>> On Mar 18, 2020, at 1:07 PM, Mike Loewen via vcf-midatlantic <vcf-midatlantic at lists.vcfed.org> wrote:
>>>>
>>> 
>>>   Isn't that what I'm doing, "virtually" typing the programs througn the serial port? I'm setting the Sol input to serial (SET I=1), then sending the ENT as an ASCII file from another computer to the Sol's serial port.
>>>
>>>> On Wed, 18 Mar 2020, corey cohen wrote:
>>>>
>>>> Why aren?t you loading programs though the cassette port or putting the machine into ?non-local? mode and using the serial port to ?virtually? type in programs?
>>>>
>>>> corey cohen
>>>> u??o? ???o?
>>>> Sent from my iPhone
>>>>
>>>>>> On Mar 17, 2020, at 5:57 PM, Mike Loewen via vcf-midatlantic <vcf-midatlantic at lists.vcfed.org> wrote:
>>>>>
>>>>> 
>>>>>  My Sol 20 is up and running:
>>>>>
>>>>> http://q7.neurotica.com/Oldtech/S100/Sol20/
>>>>>
>>>>>  As expected, I had to replace all of the foam pads in the keyboard. For some reason, the TexElec pads hardly worked at all so I sacrificed a Sun Type 4 keyboard for its pads. Other than that, a couple of RAM problems (dirty DIP switch and a defective 74LS157 multiplexer) were all that I had to fix.
>>>>>
>>>>>  As time permits, I'll investigate getting a couple of 8" drives working with a Micromation Doubler board. For now, I'm loading programs through the serial port at 1200 baud.
>>>>>
>>>>>
>>>>> Mike Loewen                mloewen at cpumagic.scol.pa.us
>>>>> Old Technology                http://q7.neurotica.com/Oldtech/
>>>>
>>>
>>> Mike Loewen                mloewen at cpumagic.scol.pa.us
>>> Old Technology                http://q7.neurotica.com/Oldtech/
>

Mike Loewen				mloewen at cpumagic.scol.pa.us
Old Technology				http://q7.neurotica.com/Oldtech/


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