Legend has it Sven is really bill gates

Every time I think I miss Commodore, a video like this reminds me how they sold us US$250 disk drives with the speed of a 300 baud modem.

You mean Commodore experience? It's amazing how they constantly messed up their media connectivity when the rest of the machines were actually quite powerful.

@@1337Shockwav3 Well, I was lucky to have an kind of rare Amiga2000HD with actual 40MBytes of HDD space inside from about 1988 xD So it's only the C64 experience for me. But yes, of course the Amiga only having DD floppies was one of it's two main (maybe only) problems. The other was having not enough sprites.

Yes, I only realized that when I had finished the video. Makes sense, obviously. :D

I have one of these, it has the "Head banger" ROM, it also has the track 0 sensor, but the function was still disabled! I enabled it and now it goes to track 0 without banging.

​@@danceographicocean Yes, but because the track 0 detection was written into the DOS (instead of a hardware only solution) , it led to even more incompatibilities and so it was disabled again.

​@@danceographicocean No. The Signal on pin PA0 is an incomming signal from UC6. This signal is triggert by the light sensor. The DOS with the light sensor integrated reads out the status of PA0 from the VIA while moving the head and stops if PA0 raises to high. There were at least three versions of 1541C on the market: One with funktional light sensor, one with disabled light sensor and DOS with integrated Sensor: These are the one that rattele when tuned on. And then a version where the light sensor was disabled and the DOS has no more light sensor routines.

And always cut off wick that has been used after each step also slows down the heating; liquid rosin flux on wick accelerates also. : = ))

Won't the plier sink the heat as well?

@@csabasanta5696 Sure but less. Ceramic pliers would be best, of course.

Muss sein! Deshalb auch das ganze Blech an der Platine vermutlich. ;)

games with onboard fastloaders (and various forms of copy protection) tend to be incompatible with other fastload solutions, since they both tend to operate by reprogramming the 1541 to behave differently.

As far as I know some of the earlier C models are just regular 1541s in the brighter case. There also seem to be some with the track 0 sensor fitted but disconnected. Commodore probably thought it would hinder compatibility with the older drives or something.

Probably not very much, because it’s so easy to make if you have access to an EPROM programmer.

I agree :)

Oh, maybe Sven took down some of his designs from the GitHub. Sorry for the inconvenience. Maybe try to contact him directly and ask for the files, he is a really friendly guy!

You need to connect both for the drive to work correctly.

@@JanBeta thank you Jan. I enjoy your videos very much!!!

Yes! Not very clever thinking on my part. I oriented the cable with the strain relief in mind (which I didn’t use). Should have given it a minute of thought, I guess. :D

@@JanBeta Well done regardless.

The noise is on the Leftside of the 1541 too

I found that it's due to problems with AV1 decoding. Can be easily disabled (at least in FF; using about:config page).

The CIA doesn't have a bug that made Commodore drives slow. The VIA does have such a bug.

So he needs more youtube money.

@@tomf3150 - He would starve to death on KZfaq money (unfortunately). I think Patreon is much more reliable, for CC's that use it.

Yes, I have Dolphin DOS installed in the original 1541 I used back in the day. It’s amazing!

Difficult to tell. Dolphin DOS is very fast in my experience but there may be some others that are faster even. I have plans for a comparison video at some point but it’s not easy to research all the fastloaders from back in the day, let alone find all the ROMs etc and make them work. I‘m on it though! :)

Oh, there should be no pixelation, at least I didn’t see any from here. Possibly another KZfaq hiccup.

@@JanBeta All good, must have been on my end.

I do have it too. Not in other YT vids though. I actually don't mind ... this is kind of retro as well :D

I‘m afraid my current "stash" of 6522 is down to about 3 known working ones so I can’t really sell any at this point. I am aware it’s difficult to find good sources for these chips. You might want to have a look at retro8bitshop.com/retrostore/c64restore/ (Martijn who runs the store says he tests all parts before they go on sale.)

I would make an adapter, but… I don’t know the required hardware. I only know, that somewhere is a RAM to hold the content of a whole track. Other than that, it would not be a big problem. Do you have a picture of the dolphin dos hardware?

There is a slightly updated Dolphin DOS project around already, maybe worth a visit: e4aws.silverdr.com/projects/dolphindos3/

Yes! DolphinDOS is a lot faster indeed. I have that in my original 1541 from back in the day. :)

There’s also a ‘skew’ factor that may be at play here. When writing on a 1541 some sectors are skipped, i.e. 1,11,21,10,20, etc (this is a skew of 10). Some fastloaders work fastest with a skew of 6 sectors; 1,7,13,19,4,10, etc. I’d recommended saving the same file with different skew values until the fastest times are achieved. If I remember correctly, SuperKit 2.0 lets you change that value when copying files. Also, try just saving the file again while in SpeedDos mode maybe it will automatically use the correct skew value. Cheers! Keep those videos coming!

​@@svenpetersen1965 I can give you the memory mapping of all relevant floppy Speeders. Contact me.

JiffyDOS (without parallel cable) sure was fast, but no, it wasn’t faster than SpeedDOS. At least most of the time, they were on par at best. And what’s more, JiffyDOS had to apply a lot of trickery to make the C64's IEC interface and drive routines perform the way they did. That inevitably came at a cost, and a great one at that. Either programs wouldn’t load, because they were incompatible with the way JiffyDOS worked, or they'd load at normal, i.e. stock speeds, because they used some alternative loading routines that simply ignored JiffyDOS altogether. SpeedDOS achieved a nearly 100% compatibility, by using the parallel interface whenever it could (i.e. nearly always) and switching to the IEC bus when all else failed (this usually happened in the case of programs using their own loading routines, particularly when information had to be loaded from or saved to disk during a program's use). The parallel interface is a hassle to install on the 1541 and the C64, but, in all honesty it should not have been omitted in the first place. The 1541 hardware had always been designed with parallel in mind, but it was omitted on the basis of savings. JiffyDOS surely was loads faster than stock speeds, and it indeed sometimes overtook SpeedDOS or other parallel-based solutions, but, as I’ve said, if you used it all day long, generally, SpeedDOS would win… I myself have used SpeedDOS and JiffyDOS (both with and without a parallel cable). If you'd use JiffyDOS with a parallel cable, then most of SpeedDOS's speed advantages would be gone, as both of them had equal performance in this case. But when you'd use JiffyDOS without a parallel cable, all of what I’ve said applies. I don’t see how having to use a parallel interface is a disadvantage anyway, especially when compared to the days before the well-optimised serial ones we enjoy today, such as USB/Thunderbolt and SATA. If you purely look at the _present,_ then, yes, you could argue that JiffyDOS is the better option to go for, not least because there’s an active community for it.

@@slashtiger1 SpeedDOS is trash compared to JiffyDOS from today's point of view, I totally agree with Daniël there. But it's a good starter for Dolphin DOS and Professional DOS modifications, to see how pleasant floppy loading on the C64 could have been in theory. I've had more issues with SpeedDOS when loading stuff compared to JiffyDOS in the past.

@@1337Shockwav3 They all have their merits. SpeedDos, Dolphin DOS and Professional DOS are all similar in that they (can) enable the parallel interface that Commodore omitted out of cost savings, but apart from that, the feature set is quite distinct for each of them. JiffyDOS has quite a few very unique features, not least of which is that one _can_ use it without having a special cable dangling from the disk drive. And apart from this, like I said, SpeedDOS doesn't get _nearly_ the amount of attention, let alone love, that JiffyDOS gets, what with the vibrant community for it. So yes, _Nowadays_ you'd most definitely be better off with JiffyDOS than with SpeedDOS, but in the past, things would have been a lot closer. I've used SpeedDOS, JiffyDOS (with parallel cable), and Dolphin DOS in the past, on different systems. My own C64 was modded with SpeedDOS, so that's what I know most about (or should I say _knew_ most about; it's been more than 20 years since I powered my system on for the last time).

I guess if you don’t like Commodore videos, you are on the wrong channel here. ;)

Thanks for sharing? kzfaq.info/get/bejne/g76HZq6EvtbFfXk.html

If you want jan to repair apple ][s (a rarity in germany) or 8/16 bit ataris, or any other retro system, you need to donate them to jan, just like us.

@@vectorjoe try Adrian black

@@keancv no thanks, i am quite happy to be a patreon of jan