Jump to content
Electronics-Lab.com Community
Sign in to follow this  
ZomBiE

Commodore 64 repairing gone forgotten?

Recommended Posts

What's wrong with people? Now i have been repairing those good old computers because seems like anyone else can't do that here in Finland... What if those original logic IC's aren't available anymore? Always there's a substitute. Well, PLA IC's might be hard to find, but almost all the others can be found. Is there anything same-like problem anywhere else?

Share this post


Link to post
Share on other sites

The 1MHz CPU addressed to the C64 fell off the edge of the World awhile back...  :o

Today, the only use for the C64 & C128 is noted as a vintage collectable.
Although, i must admit for gaming purpose the package aesthetics along with the finite code practiced was optimum.
Software engineering today abuses the fast CPU because the programming they create is very sloppy!

C64 software was pure assembly language ~ (similar with today's VVM); very fast and accurate!
Even the basic emulator used with the C64 (Peek - Poke) was presented in a fast format.
Sadly, their are a few limitations when using assembly that for the most part can only be used in a focused application.
The "Sprite" command was very useful in the past (C64) but with the variety of colours we are use to today the latter function is simply resolved into the primary band etc...

Zombie, you are one of the very few that can keep the fabric of the C64 alive, similar to the great people that have the desire to uphold the old HERO (Heath Robot).
I admire your dedication, the latter will allow the younger community to see first hand where the (somewhat) beginning elements occured!
I myself design and engineer Tube amplifiers for the very same reason.  ;)


Share this post


Link to post
Share on other sites

I was very happy when my parents got me my first computer. It was a Sharp MZ-80A! Still have it.
http://www.old-computers.com/museum/computer.asp?st=1&c=172

I would spend many hours on this thing, sometimes programming right through the night. I wrote my very first chess program on this. Took months, but learned a lot about peeking and poking and machine level instructions!

Share this post


Link to post
Share on other sites

Hi AN920,

I admire your candor!

You appear very young in your Avatar picture.
In the event it is authentic than you will have a lot to give to the younger engineering community because of your age!  :)


God bless,

-Omni

Share this post


Link to post
Share on other sites

Haha,

I must admit i tend to avoid a big confrontation when silicon is concerned...
When i received my degree the class was just starting to delve into transistor theory.  :o
Within the University i continued to attend, advancing my degree during the evening curriculum but as everyone is aware the evening program is sort of loose. :-X
When i view the mental focus of AN920 i get a smile, she is very precise; how i was when learning the fleming valve but without all the simulators.
Oddly, during the fleming heyday (Rf) i considered a smith chart a type of simulator! ;D

Today, with all the mini surface mount technology i am a little lost to say the least.  :-\
However, i am from a far different era where one could hold the actual part and clearly read a part number etc...

My time with electronics was very enjoyable and i still find interest in designing and engineering musical tube amplifiers, primarily push-pull.

The odd, young character/avatar is a pseudo comparison i found humorous!  ;)
Plus, i attend Mass on a regular basis, i have found that the latter is more important than anything else; my opinion.  :)

Share this post


Link to post
Share on other sites

Hi Omni,

I used to have a Quad tube amp that sounded great. Only 15W rms but outperformed the 50 W transistor amps. Today I am sorry that I traded it for an old RF Motorola signal generator back in high school.

Share this post


Link to post
Share on other sites

I used to have a Quad tube amp that sounded great.

I liked the Quad electrostatic speakers in the "good old days". I shopped for speakers that sounded almost the same and selected less expensive Acoustic Reasearch speakers.
Then all the speakers I made are adjusted to also sound similar.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

×
×
  • Create New...