ZomBiE Posted May 31, 2007 Report Share Posted May 31, 2007 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? Quote Link to comment Share on other sites More sharing options...
Omni Posted June 3, 2007 Report Share Posted June 3, 2007 The 1MHz CPU addressed to the C64 fell off the edge of the World awhile back... :oToday, 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. ;) Quote Link to comment Share on other sites More sharing options...
AN920 Posted June 3, 2007 Report Share Posted June 3, 2007 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=172I 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! Quote Link to comment Share on other sites More sharing options...
Omni Posted June 3, 2007 Report Share Posted June 3, 2007 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 Quote Link to comment Share on other sites More sharing options...
AN920 Posted June 3, 2007 Report Share Posted June 3, 2007 I look after myself! :) Quote Link to comment Share on other sites More sharing options...
AJB2K3 Posted June 4, 2007 Report Share Posted June 4, 2007 I have been in the prograss of addiing scart to mine plus a few more cosmetic mods but its been set back for ages. Quote Link to comment Share on other sites More sharing options...
ante Posted June 6, 2007 Report Share Posted June 6, 2007 Omni, you look kind of young and unfocused (on your avatar) to be a tube mechanic! ;D Quote Link to comment Share on other sites More sharing options...
audioguru Posted June 6, 2007 Report Share Posted June 6, 2007 I was very young when i made my first vacuum tubes amplifier. Quote Link to comment Share on other sites More sharing options...
Omni Posted June 6, 2007 Report Share Posted June 6, 2007 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. :oWithin 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. :-XWhen 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! ;DToday, 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. :) Quote Link to comment Share on other sites More sharing options...
AN920 Posted June 7, 2007 Report Share Posted June 7, 2007 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. Quote Link to comment Share on other sites More sharing options...
audioguru Posted June 7, 2007 Report Share Posted June 7, 2007 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. Quote Link to comment Share on other sites More sharing options...
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