Hi, I have just been in touch with Deltronics here in the U.K and he will be hopefully dropping a comment on here for you Jan. The company has been established since the 80’s and still running today 👍 Loving the uploads as always ❤️

I absolutely love how excited you are! I often find myself FILLED with enthusiasm for the classics, and I guess that can be hard to understand for others around me sometimes, so it's just so cool to see someone get as jazzed as I'd be! Thanks for the great video! PS. That bust of Burt from Sesame Street is fantastic!

@JanBeta

5 жыл бұрын

Thanks! Yes, I feel a lot of passion for these old machines. Glad it translates in the videos. It's just so rewarding to repair this stuff! :D

This puts a smile on my face. Thanks for preserving it instead of "restoring" it. That has been used, it deserves to stay as the previous owner modded it.

Wow. I haven't seen Commodore Basic code in over 3 decades. That takes me back. Thanks for the video.

I usually dislike machines that have been "personalised" (I never did it as a kid) but for some reason this C64 evokes real nostalgia for the period. Mean Machine & C+VG were my two favourite mags back in the day (long live Jaz Rignall & Richard Leadbetter et al) & it's nice this C64 has found a good home in Jan Beta's house!

9:13 "I hope you're still watching .." Of course I'm still watching :) Great video !

@eddiehimself

4 жыл бұрын

*you're

Man that's some moddin' done there. I'm not even sure how you could use any of it at all. Also I was not even aware you could do that to chips, I thought legs were useless after they snapped so thank you for that little bit of information I have some to fix now. Oh and THUNDERCATS HHHOOO.

@1337Shockwav3

5 жыл бұрын

That's quite a harmless case of a lost leg. Also, if the leg has snapped off completely you can still free some metal so solder to by carefully filing down the plastic/epoxy that makes up the packaging ... lot's of material left til you get to the actual chip: cdn-blog.adafruit.com/uploads/2016/06/27664808502_24a5163659_b.jpg

Another great video. It's really moving to think about the lives and history of the people that used this machine in the past ...

@JanBeta

5 жыл бұрын

Thanks! I love machines that have a bit of a history. :)

Great work, it certainly stands out from other C64s!

Ahhhhh. Es bereitet mir physische Schmerzen, wenn du das uralte Board so durchdrückst :) Es kracht und knackt und der Cäptn schreit: kalte Lötstelleeee voraus! Glück gehabt. Liebe Grüße aus Hamburg + mein Respekt.

@konrad303

5 жыл бұрын

Das muß das Boot abkönnen.

@JanBeta

5 жыл бұрын

Vielen Dank! Das Board hat das offensichtlich gut überstanden, aber du hast natürlich Recht. Eigentlich hätte ich das sauber ausbauen und auf flacher Fläche machen müssen. Ich war ein bisschen ungeduldig...

You're a true inspiration, Jan!

Regarding the $80 $A0 switches... are they related to hacking the cartridge address so it can be mounted and not started? The startup sequence checks at some address, if a cartridge is present, it'll read a specific value "CBM80" and jump to the cartridge start address. By permuting two address lines, the cartridge can be mounted at a different address, and the computer cannot detect it and boots into Basic. So the cartridge contents can be duplicated to tape... It was a well known hack on VIC20. A special RAM extension card was required to reload the tape into it, make it read-only, switch back address lines then a button would reset and allow boot to r/o loaded RAM.

@firstsurname9893

5 жыл бұрын

The simplest explanation is that the switches disconnect the GAME and EXROM lines preventing the cartridge from starting. That fits with the labelling as the rom locations are $8000 and $A000. See this page for more markus.brenner.de/cartridge/

Great show and repair on a loved C64

I love watching a successful repair on an old 64. I kept mine in a bin for 6 months before I got brave enough to attempt the repair. Turned out it was RAM, PLA and VIC II chip. I would fix one thing and then wait for parts before fixing another. I built my own PS also and put it all in a PC PS box. Now I feel brave enought to collect a few more bad ones and attempt more repairs. You gave me anincentiveto push forward!

@JanBeta

5 жыл бұрын

Oh, glad to hear that. Nice work. Hope you are going to be able to fix more of the glorious old machines. :)

Computer + Video Games aka C&VG was one of my favourite computer magazines back in the day. Awesome stuff 😎

@JanBeta

5 жыл бұрын

Nice! Never seen it here though.

Glad you were so excited. I appreciate your passion. I like repair videos where people do more and talk less. Style difference I suppose.

I well remember that sheet of stickers from C+VG magazine! (Featuring Melissa Ravenflame and the Bug Hunters robots.) =)

Great video Jan. Nice surprise for my Sunday morning 👍

@JanBeta

5 жыл бұрын

Thanks Glen! :D

A bread box shipped in a shoe box! 😄

@JanBeta

5 жыл бұрын

A meta box? ;)

@KomradeMikhail

5 жыл бұрын

Boxception.

@AmstradExin

5 жыл бұрын

@@JanBeta You mean met@box? ;-)

My first pc was Commodore 64 I sat for HOURS programming them and love seeing this

@shawbros

2 жыл бұрын

I sat for hours playing games on them.

Another superb vlog Jan :o) Many thanks ! Deltronics are still in business btw :o)

@JanBeta

5 жыл бұрын

Thanks! Cool to hear that Deltronics are still going. :D

@a500

5 жыл бұрын

I wonder if they are still repairing C64s? Or any consumer electronics for that matter? Most modern electronics are considered disposable, it’s cheap to get a new on than repair.

I saw John Wick 3 tonight and it was full of Commodore breadbox computers. They zoomed in on the restore key many times

@peterlamont647

5 жыл бұрын

Cyrulean now i am going to see it!!!! Even if it has keanu reeves.

Another fun video. The original ceramic VIC2 chips actually had the "shimmer" bug. So, yes, they look different, but it was not the intended state. They fixed the shimmer in later revisions.

Awesome donation! LOL @ the number of stickers on it!!!

@JanBeta

5 жыл бұрын

Yes! I absolutely love the look of it. It doesn't get any more authentic eighties than that. ;)

A great video as always Jan. I wish I was as tech savvy as you are, as i'd love to be able to open up and maintain my old C64's as you do in your videos. I still have my very first C64 that my parents bought me second hand back in roughly 1987/88 ish, that came with lots of games, and books and cassettes etc, I think the previous owner was a programmer, as there were lots of programming books/reference guides with it etc, AND... it is the collectible silver label C64 to boot. It has sadly long since stopped working, but it could very well be something and nothing to get it going again, maybe just one or more of the chips like in your machine here possibly. If I knew what to do I would get it going again myself, just for nostalgias sake with it being the very first C64 I owned. These days I currently use a C64 G as my main gaming computer, and have also just purchased another C64 G from ebay which should arrive next week, it is in better condition than the one I have now and is less yellowed than mine, but the guy has refurbished it, and replaced the capacitors etc, and he said it is in great nick, so i'm looking forward to receiving it soon :-D I also purchased Neutron recently, and what a great game..I love the C64 scene right now, it's better than ever :o Keep up the great work Jan, all the best ;)

Especially liked the Thundercats outro

Now THAT's a really interesting machine! Cool donation.

@JanBeta

5 жыл бұрын

It definitely is! :)

Pure Love & Dedication for a world-wide beloved machine - subbed to this one. I was 12 in 1982, when I picked & sold enough berries to the local baker shop ... in order to buy my first home computer... da legend, the C-64. Owwww Commodore, how do we all miss ya. That game is pretty similar to 'Plutos' on the Amiga, a really great one in 2-player teammode. Greetings from Belgium to the World of Commodore :-)

This is the first video of yours that I've seen, and I love it! I subscribed and liked! You are very mellow and describe things in a fashion that people can understand. I wish that I could've kept my C64, but it was tossed out decades ago when it became obsolete. My favorite game was Raid Over Moscow. I played it for hours and would love to be able to play it again. Do you know a way that I can get that game and play it on a semi modern console? If so, PLEASE let me know. Thanks again for this great video. 😃👍

@Max-qy5rh

5 жыл бұрын

weil im hintergrund ein Porno laeuft?

Awesome video as always. Love you Always make them long I kinda hate r when videos are like 10 min.

I remember having those stickers. There was a little comic strip in c+vg which they were based on... God im old lol

This 64 has tons of charm.

I really like watching your videos, thanks Jan :) Is it possible to make a bit detailed video about armsid vs SID? I know you are professional in audio business and this video can be very enlightening for lots of fans.

Very cool seeing a C64 again as it was the first ever computer I got (second hand mind you) when I was in primary school and boy did I play the absolute shit out of that haha although the version I had was the disk drive version and not the tape deck version but damn did this bring back some memories and makes me kinda wish I didn't sell it all those years ago as would love to play it again even though I know it's much easier to just use a C64 emu

I live not too far from Crawley. 20 miles from me. I go there when I service my bikes. Still a shop I believe That ESD strap you wear is to equalise you and device in terms of electricity. If you are equal, no damage can commence. A 1mega ohm resistor is installed to reduce electric shock.

Awesome donation by @game_whisperer -- I am glad it went to you. Such a cool, well enjoyed C64. And seriously, 2 thumbs down ... give me a break.🤦‍♂️

@JanBeta

5 жыл бұрын

Thanks Mark! I love the looks of it. :) The thumbs down always happen, doesn't matter much too me. ;)

The Commodore 64's are great gaming machines still today and I have two of them at home. I got one new and the other one I got from a guy who was being sent somewhere else and had to sell his C-64 system and software. That was how I got a floppy drive for the computers, along with software and other items. I used the system for awhile then put them away. When I moved to a new house one of the computer's was setup, but not used since I have several computers to use, and more to repair.

@JanBeta

5 жыл бұрын

Nice! Hopefully you will get to use your vintage computers some time. :)

Great Job, Jan:) And ALERT, ALERT! Pin 8 of U12 was bent at 25:59

@JanBeta

4 жыл бұрын

Thank you! Well spotted, I straightened the leg off camera. :)

Cool repair and troubleshooting! I would examine the timing on the newer RAM chips, versus the ones it came installed with. Maybe there was a some differences that caused it to appear to cascade to each successive chip?

@JanBeta

5 жыл бұрын

Ah, didn't think of that. It seems the MT branded RAM chips are very prone to failure anyway so they really might just be dead. Should test in another machine sometime I guess.

Hi Jan...i have my TEST board no more working, it starts with random characters after a few seconds i turn it on...i then install sockets on all the ram chips and now seems that also the "ZERO PAGE" of the Dead test fails...do you thinks it could be some bad wiring problem of ram chips ?

Awesome job

Re the fuzzy image: you could replace the RF modulator to get a sharper image. I recently put a modulator from a 250425 on a 250407 and it looks very good, even with a 6569R1 chip.

This was a loved machine

@JanBeta

3 жыл бұрын

It still is! ;)

Better keep that thing with all the stickers and writing. I love the look.

@JanBeta

5 жыл бұрын

Yes, that's what I am going to do. :)

@BertGrink

5 жыл бұрын

It's kind of like a battle-hardened veteran who has survived countless fights ;)

Hi Jan! The SID chip was not an analog synth. it used a digital sound synthesis with 24 bit registers that where basically counters counting up and for different frequencies the counter value per sample was different. also the ADSR envelop was digital. this was some insight of an interview with bob yannes. however, for every of these three voices it was possible to route the signal directly out through the volume register handling out to the output or going through the filter stage. and the filter stage was analog. it also uses two capacitors that are connected externally from pin 1 to 4 if i remember right. big capacitors can not be implemented inside the chip therefore they are placed on the motherboard. and this is also a weakness of the system because these capacitors have a certain tolerance and that tolerance affects the corner frequencies of the filters. this is one of the reasons why the SID chip sound different on different C64 computers. So rebuilding the sound generator in software is easy to make 100% accurate but the distortion of the 8-bit DAC and the analog filters and other non-linearities in the volume regulation and that involved transistor stages is the primarily "character" of the SID. especially the theory behind the filters is not always very trivial when implementing them digitally and measuring the characteristic of the original filters. this is probably the shortcoming of actual emulations. but that hopefully will change soon because i started the FatSID project. you can find it on facebook and i will post some videos soon where i go through the development of the FatSID. if I have a prototype version where I think it is time to evaluate and test it I can send you one. i will also post the videos also on KZread on a separate channel soon. All the best and greetings from Austria, Stefan.

Wow. I know is not at all the point of the video, but Neutron looks SO nice! Really want to play that!

Star Force is my favorite NES game! Now I need to get Neutron for my C128.

Great video. Did yoy figure out what the mods were for? I follow dean too :)

@JanBeta

5 жыл бұрын

Thanks! I haven't found out what they do, I'll have to dig into it. The switches are connected to the cartridge port and the NMI seems to do similar things like the RESTORE. I'll make an update video soon.

Ha! I know Crawley quite well, been going there since the late eighties. There was an amazing shop there called Crawley computers. It was the only place we could get msx games semi locally.

@JanBeta

5 жыл бұрын

Oh, good place for computer enthusiasts. :D

Looks like pin #8 on one of the chips you replaced was a bit folded over. Maybe it was just the camera angle, but looked odd. At 25:59, I believe it was the chip you soldered a pin onto.

@JanBeta

5 жыл бұрын

Well spotted! I think you are absolutely right. I had to reseat that one again (didn't film it) if I remember correctly.

Jan, the man!

"But, does it smell like cinnamon and liquorice?!" 🗨🤧💫

The SID chip replacement you used is actually a SwinSID Nano. It is based on an ATmega88p 8 bit microcontroller and considering this it isn't bad but does not emulate POTX/Y. ARMSID however is based on an STM32 microcontroller, which is a 32 bit ARM chip with FPU. It actually does a very good job and has POTX/Y support.

@JanBeta

5 жыл бұрын

Yes! You are right of course. No idea why I confused the two! I have to say it’s pretty decent for its price and works well as a replacement until you find a real SID or a better replacement. :)

@redhawk668

5 жыл бұрын

@@JanBeta I built those little SwinSID's myself so I recognize them 😁. The ARMSID is a very good replacement and sounds very good, has adjustable filters and emulates both 6581 and 8580 by choosing it by running a small program on the C64.

Bought a new power supply but my first 64 is still black screen. Found a donor machine but it turns out it is PAL. Odd to find one in the US. Until it's repaired, I'm glad to see my replacement, a 128Drc still works. A 1541 and the 1581 drives are malfunctioning though. Still need to test my printers.

c+vg = computer & video games. a amazing magazine I have stacks of.

I always wondered: Has there ever been a C-64 with a standard German QWERTZ keyboard, or were they all UK keyboard (PAL) or US keyboard (NTSC)?

I have a TRS80 Model 3 that’s worn to hell and covered in typed stickers and stuff with poke cheats and all kinds of stuff. I’ve deliberately left it all alone. I call it the “well loved” TRS80 - but I just love the patina.

@JanBeta

5 жыл бұрын

Yes, exactly! I love the looks. Definitely a well loved machine. Seems to have been used as a donor at some point but still lovely. :)

God I miss this era....

If you turn off the C64 is will erase the software from the tape loaded into RAM, so you always have to reload the software into the RAM each time you want to play the game? The Software on the tape is assembly machine language or C++ that is an written arcade game?

That's a really nice looking game and only 16k! That's proper coding, that is.

@JanBeta

5 жыл бұрын

It is! The 512K version Sarah is working on is going to be even more amazing. :D

the sticker is Monkian from Thundercats 👍

Great job..... 👍

I miss my old C64 and my Amiga even more.

@JanBeta

5 жыл бұрын

I recommend getting some again. ;)

@robertdaone

5 жыл бұрын

Yep I will be hitting up Ebay in the near future.

So what mystery you taped over there Jan?

@timrb

5 жыл бұрын

The name of the owner.

My first computer, bought it on 1986

Cool. Great you can fix it. I have two dead c64s that also need power supplies. It'd be neat to make them work

@JanBeta

5 жыл бұрын

Thanks! Definitely don't go with the original PSU if you want to power your C64s, they can be quite harmful to the machines at times.

@jack002tuber

5 жыл бұрын

@@JanBeta Thanks, that's what I've heard.

Der vic II in meinem 1984er Brotkasten sieht genau so aus wie der in dieser Maschine, ist auch die gleiche boardrevision wie bei meiner Madchine 😁

I thought you might like to convert the C64 into a Ben Heck-like laptop he did as a suggestion. Whoever now is the Commodore owner must do something like that Ben Heck made that kind of C64 laptop with all the C64 games added into a 64 GB SD card as that kind of option.

Very Nice , Thank You , Liked , Subbed and Shared :) QC

@JanBeta

4 жыл бұрын

Thank you! :D

Looked like you bent another leg on that replacement U12 RAM chip (the one you soldered the new leg on). Maybe not a great contact so it could be why it took a while to pass the RAM test? Idk

that thing is gold Außerdem ist das lehrreich^^

I live quite close to Crawley, I'll see if Deltronics is still there :)

@JanBeta

5 жыл бұрын

Oh, that would be amazing! They are listed on some pages as still operating. :)

I have a very strange question - would you say the keys are a dark brown or black that has faded and yellowed? If they are meant to be black, would peroxide treatment restore it to an unambiguous shade?

@JanBeta

4 жыл бұрын

They are definitely dark brown originally. I can’t recommend retrobrighting dark parts, they often turn out with cloudy discoloration. You can watch my Atari 800XL restoration if you need an example. ;)

The compilation tape I remember well - I had the Atari 8-bit version and it was utter garbage and even back then, as a child, I was immensely disappointed, and the tape only loaded about half the time because it was a long tape and cheap quality :-)

@blackcountryme

5 жыл бұрын

I had the cascade tape for the spectrum, a game called skull, so I started adding stuff in basic to it. Two skulls chasing you, instead of one, more beeps in the sound, that got me into programming that cassette did.

Those old breadbox PC like the c64 in truth I want one to mount several sbc inside .or just as a chassis .

Why censor the inside of the C64?

@JanBeta

5 жыл бұрын

The name & address of the original owner was written inside.

the first computer i love it Great computer and the best days games

@JanBeta

5 жыл бұрын

Agreed! :D

❤️

deltrinics are still around i just looked them up online

JAN BETA, The tape has the arcade game software code on the tape? the tape data is getting loaded into the C64 eeprom chips? I'm not sure how the game code on the tape gets installed into the C64 chips

@JanBeta

4 жыл бұрын

The software from tape is loaded into RAM and then accessed by the system.

15:55 da läuft ein porno

Reebok Karrimor Commodore

I googled Deltronics and it claims to now be 'permanently closed' :/

@blackcountryme

5 жыл бұрын

@@mikeyandjanie it says on yell they are open today!!

@DystopianOverture

5 жыл бұрын

@@mikeyandjanie Oh! That's awesome!

@sheep1ewe

5 жыл бұрын

Are You sure it's the same company? There are a company wich sell equipment for fireprotection with the same name (at least in my country).

@DystopianOverture

5 жыл бұрын

@@sheep1ewe I googled 'deltronics Crawley'

@sheep1ewe

5 жыл бұрын

@@DystopianOverture Ok, thats pretty awsome!

Hallo, Das selbstgebaute C64-Netzteil, was Du da verwendest, welches Gehäuse ist das genau und welche Schaltun genau steckt dahinter? Gibts da einen Link? Ich hab hier einen C64 ohne Netzteil rumliegen, dem würd ich gern einmal wieder zum Leben erwecken.

@JanBeta

5 жыл бұрын

Ich habe dazu vor einiger Zeit ein Video gemacht, ist recht simpel wenn du ein klein wenig löten kannst: kzread.info/dash/bejne/qYuDt5SsitnFnso.html

@xxxJinGejxxx

5 жыл бұрын

@@JanBeta ah ok, danke

Jan, maby you could do a video where you capture a C64 program from cassette and format it onto an SD card.

@JanBeta

5 жыл бұрын

Oh, that's a nice idea. Maybe I'll get to that. :)

Commodore 👍

HI ITS JAN BETA !

@marcianzero_yt

5 жыл бұрын

Perifractic, is it you?

I’m thinking I might have a vic20 a 64 & a Amiga1200 with ppc upgrade in my loft

radical breadbin :)

@JanBeta

5 жыл бұрын

Haha, absolutely. I love it. :)

great video and thundercats was the best

@JanBeta

5 жыл бұрын

Thanks! :D

@Markchill2

5 жыл бұрын

@@JanBeta No problem man

Hi Jan, Crawley in 10 mins up the road from my house. Not far from Gatwick airport.

@JanBeta

5 жыл бұрын

Nice! If you ever have the chance, would be amazing to see if Deltronics is still there. :)

C+VG - Computer and Video Games, a UK magazine.

@JanBeta

5 жыл бұрын

Yes! Seems to have been a very popular one, too. Didn't see it here in Germany unfortunately.

Hmm deltronics crawly are listed on yell... So they might still be there!

@JanBeta

5 жыл бұрын

That would be awesome! :D

I live next to Crawley as far as I know Deltronics doesn't exist anymore

Still not sure what them mods do? I don't even understand what that NMI switch does.

@blackcountryme

5 жыл бұрын

If I remember (it's been years) it stops the game running and then you can add pokes to cheat (extra lives, health etc) then restart the game with the cheats in place, you could also back up the memory (and thus the game at that point)

@BertGrink

5 жыл бұрын

@@blackcountryme It all depends on what the programmer decides it should do; the things you mention is just one of several options, another might be the ability to restore the system after a crash without resetting the entire computer. Or it could be used to invoke a machine-code monitor, as i have done for my Sinclair ZX Spectrum +3. This helps me find out all sorts of things that happens "behind the curtains" in the normal workings of the BASIC interpreter without issuing a Basic command to start the monitor.

LOVE the stickers! Don't see many people with stickers on their C64 everyone wants to keep everything stock. BORING!

yeah Deltronics is still going

the sticker is monkyan from thundercats :D

@JanBeta

5 жыл бұрын

Ah, didn't know the name obviously! Good to know! :)

thumbs upped for 1980's

@robertdaone

5 жыл бұрын

80s always in the house

@testiclestoshirleycles5755

5 жыл бұрын

@@robertdaone hi daddy

12:02 Mains ground? I'm sure you know this already but just to be sure, you're using a proper ESD bonding point plug aren't you? I'm not 100% sure on the science of these, but AFAIK there's a resistor in there that means you don't get fried should you get a high-current shock while wearing one.

@JanBeta

5 жыл бұрын

Yes! There’s a resistor in the wrist strap to limit the current. I also take off the strap completely when working on mains powered stuff (which I rarely do).

@dantootill

5 жыл бұрын

@@JanBeta Sure, just checking. I don't go near mains voltages myself, or even CRTs. Call me a massive wuss but stay safe everyone.