I finally after many years bought one of these. I was able to make a deal on one and very happy I got the DCR. I put a fan in mine. I used Noctua NF-R8 redux-1800 PWM. Its so quiet....even with the case open, you never know its there while running.
I also have an C128DCR and have wanted to add a fan. When I searched your model, you listed an 80mm X 80mm X 25mm came up on a few sites. That seemed to big to me, so I searched C128DCR adding fan and found a few hits with people saying and showing them using a 60mm X 60mm X 10mm. What was the size of the fan that you installed? TY!
I specifically went looking for a Noctua fan. I knew they were quiet. This is the only one that would fit. 80MM was too big. I have a box full of fans...So I was trying different ones out for size before I ordered the Noctua I got.
@@TheRetroChannel Its funny how 35 years ago I couldnt justify 450.00 to 500.00 for this computer. This year I at 500.00...I couldnt click buy it now fast enough. LOL
An old Capacitor that measures over the rated capacitance is something I'd worry about. Because that could mean that the Capacitor is leaky and the measuring tool falsely measures it to be fine, when it really isn't. Be careful of that (I had a Taicon or Toshin Kogyo 2200µF Cap measure over 3000µF, so clearly not good no more).
Nice Video. Only nitpick i have that you should have measured the caps that see the switching frequency (i.e: the secondary ones) with a measuring frequency near the switching frequency. Measuring a cap that needs to function at 40 / 50 / 60ish kHz with 120Hz is more or less meaningless.
Heh, true. I was more concerned with seeing if they're dissipation factor was in spec. But checking other characteristics at 10khz or 100khz (that meter steps up to the power of 10 after 1khz) is a good idea. I'll be sure to do that for the secondary side caps next time a SMPS comes across the bench
Hi thanks for the video ! I just built a power supply for my 128DCR as the factory one has a bad transformer. My 128D is now working but when I put the 128 top cover back on, my drive does not read floppy disks. Looks like some sort of EMI. Any ideas on how to fix that? Thanks !
Great video as also! TY for this great Commodore content! Yes, those cartridge legs that you redid look so much better than what had been done good job! Great ideal to add the two pin headers to be able unplug the fan easily. What's in the glass? The can is mostly blocked and can see what it is. You moved, correct? If so, how did it go? Did your retro area change much in size? I live in a tiny house, and I'm maxed out with on space for my Commodore retro systems unless we move to a larger house.
Thanks. In the glass is an IPA from BentSpoke (a local brewery). I didn't move, just did a bit of a revamp with some larger benches. The space I'm in is still pretty tight, so there's a lot of stuff carefully stowed away wherever any space is available
Cool. I have a 128dcr that I need to fix up one of these days. The disk drive can handle both single and double sided disks in both mfm and gcr formats, right? Seems like it would be cool to image lots of different 5.25 formats with.
@@TheRetroChannel That is cool for DOS and CP/M format disks but..... I wonder if it can read and/or write tracks on single-sided Apple2 floppies in GCR mode. :O The internet hasn't confirmed or denied this to me yet.
Yeah, it's cost reduced in the sense that the main board has fewer ICs and also integrates the disk drive controller. The plastic case has a lot more going on inside. Apparently the metal case was used to comply with the FCC rules in the US
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Thanks for your video, much appreciated,...learned a few things about my COM64.
I finally after many years bought one of these. I was able to make a deal on one and very happy I got the DCR. I put a fan in mine. I used Noctua NF-R8 redux-1800 PWM. Its so quiet....even with the case open, you never know its there while running.
Nice and congratulations. Yeah this one could certainly use a Nocuta fan
I also have an C128DCR and have wanted to add a fan. When I searched your model, you listed an 80mm X 80mm X 25mm came up on a few sites. That seemed to big to me, so I searched C128DCR adding fan and found a few hits with people saying and showing them using a 60mm X 60mm X 10mm. What was the size of the fan that you installed? TY!
Just had a look myself. The maximum size that would fit is a 60x60x25
I specifically went looking for a Noctua fan. I knew they were quiet. This is the only one that would fit. 80MM was too big. I have a box full of fans...So I was trying different ones out for size before I ordered the Noctua I got.
@@TheRetroChannel Its funny how 35 years ago I couldnt justify 450.00 to 500.00 for this computer. This year I at 500.00...I couldnt click buy it now fast enough. LOL
An old Capacitor that measures over the rated capacitance is something I'd worry about.
Because that could mean that the Capacitor is leaky and the measuring tool falsely measures it to be fine, when it really isn't.
Be careful of that (I had a Taicon or Toshin Kogyo 2200µF Cap measure over 3000µF, so clearly not good no more).
Nice Video. Only nitpick i have that you should have measured the caps that see the switching frequency (i.e: the secondary ones) with a measuring frequency near the switching frequency. Measuring a cap that needs to function at 40 / 50 / 60ish kHz with 120Hz is more or less meaningless.
Heh, true. I was more concerned with seeing if they're dissipation factor was in spec. But checking other characteristics at 10khz or 100khz (that meter steps up to the power of 10 after 1khz) is a good idea. I'll be sure to do that for the secondary side caps next time a SMPS comes across the bench
Hi thanks for the video ! I just built a power supply for my 128DCR as the factory one has a bad transformer. My 128D is now working but when I put the 128 top cover back on, my drive does not read floppy disks. Looks like some sort of EMI. Any ideas on how to fix that? Thanks !
Great video as also! TY for this great Commodore content! Yes, those cartridge legs that you redid look so much better than what had been done good job! Great ideal to add the two pin headers to be able unplug the fan easily. What's in the glass? The can is mostly blocked and can see what it is. You moved, correct? If so, how did it go? Did your retro area change much in size? I live in a tiny house, and I'm maxed out with on space for my Commodore retro systems unless we move to a larger house.
Thanks. In the glass is an IPA from BentSpoke (a local brewery).
I didn't move, just did a bit of a revamp with some larger benches. The space I'm in is still pretty tight, so there's a lot of stuff carefully stowed away wherever any space is available
Cool. I have a 128dcr that I need to fix up one of these days. The disk drive can handle both single and double sided disks in both mfm and gcr formats, right? Seems like it would be cool to image lots of different 5.25 formats with.
Yes, it will handle both formats in single and double sided. I go into that a bit more in the next video
@@TheRetroChannel That is cool for DOS and CP/M format disks but..... I wonder if it can read and/or write tracks on single-sided Apple2 floppies in GCR mode. :O
The internet hasn't confirmed or denied this to me yet.
I would’ve expected the “ cost reduced” to be plastic. Odd!
Yeah, it's cost reduced in the sense that the main board has fewer ICs and also integrates the disk drive controller. The plastic case has a lot more going on inside. Apparently the metal case was used to comply with the FCC rules in the US
@@TheRetroChannel Oh, I forgot about those crazy 80s RF shields everywhere here in the USA. Can't interfere with the mighty TV!