[vcf-midatlantic] Old computer I can learn to repair?

[Benjamin Krein]

Good points.  Maybe this is a good time to build Ben Eater’s breadboard 6502? 

Benjamin Krein
Sent from my iPhone

> On May 4, 2024, at 8:58 AM, Sentrytv <sentrytv at yahoo.com> wrote:
> 
> Personally, I believe that you should learn the basics of the oscilloscopes how to set and configure, how to read and interpret the screen, and then how do use it in a practical application.
> 
> If the scope does not have a built-in calibration tool, probably your best bet would be to either purchase, or even better, to build one, so the scope can be properly calibrated and you know it is accurate.
> 
> Yes, of course the calibration source Has to be accurate.
> 
> Once you’ve done that you can even start with an old handheld a.m. radio that runs off of a couple of AA batteries so that it is completely safe and use the scope to check waveforms while a signal is present and not present, just to get familiar.
> 
> One of the things you may want to invest in later on and even now it is a MicroProcessor trainer, which you can easily use a scope on and will show you different signals.
> The Z 80 CPU trainers are fairly cheap.
> 
> Mike
> 
> 
> 
> Sent from:
> My extremely complicated, hand held electronic device.
> 
>> On May 4, 2024, at 8:20 AM, Benjamin Krein via vcf-midatlantic <vcf-midatlantic at lists.vcfed.org> wrote:
>> 
>> Yeah, I'll learn what I can with the computers I have for sure.  There is a
>> motivating reward to fixing something broken though so I thought I'd ask
>> around.
>> 
>> That o-scope tutorial kit looks interesting.  I wonder if that'd be easy
>> enough to build with spare parts?  I'm sure I can simulate plenty of
>> scenarios with various microcontrollers too.  All good things I can & will
>> do but those still don't have the same reward of actually bringing
>> something real back to life.
>> 
>>> On Fri, May 3, 2024 at 10:17 PM James via vcf-midatlantic <
>>> vcf-midatlantic at lists.vcfed.org> wrote:
>>> 
>>> I just bought this to help me learn how to use an Oscilloscope.
>>> 
>>> https://www.jameco.com/z/WSEDU06-Velleman-Whadda-Oscilloscope-Tutor-Kit-Generate-Safe-Real-World-Signals-to-Measure_2175568.html
>>> 
>>> I haven't used it yet, but it seems promising enough for the price.
>>> 
>>> 
>>> 
>>> On Fri, May 3, 2024 at 9:00 PM Bill Degnan via vcf-midatlantic <
>>> vcf-midatlantic at lists.vcfed.org> wrote:
>>> 
>>>> Ben,
>>>> You can learn a lot with a working computer.  I would want to start with
>>>> something known-to-work.so you have control over those variables.  To see
>>>> what a proper circuit looks like on a scope will be useful when you
>>> compare
>>>> to a non working machine
>>>> Bill
>>>> 
>>>> On Fri, May 3, 2024, 6:25 PM Benjamin Krein via vcf-midatlantic <
>>>> vcf-midatlantic at lists.vcfed.org> wrote:
>>>> 
>>>>> I just got my first ever oscilloscope (Zoyi ZT-703s) but I have a
>>>> problem -
>>>>> I don't have any broken computers! :)  Anyone have any old computers
>>> that
>>>>> are repairable they want to get rid of?  Probably something 8-bit just
>>>>> because I'm an absolute beginner.  I'm also thinking something more
>>>> common
>>>>> just because resources will be easier to find.  Here's my wish list
>>> but I
>>>>> won't look any gift horses in the mouth!
>>>>> 
>>>>> 1. Commodore 128
>>>>> 2. Atari 400(xl)/600/800(xl)
>>>>> 3. Apple IIc(+)
>>>>> 
>>>>> I've always wanted an Amiga (500) but I'm not sure if that's getting
>>> too
>>>>> complicated or not for the scope I got?
>>>>> 
>>>>> I'm in the Philadelphia area.
>>>>> 
>>>>> --
>>>>> - Benjamin Krein
>>>>> 
>>>> 
>>> 
>> 
>> 
>> --
>> - Benjamin Krein
>