What capacitors for 1.44MB floppy recap?

[djc6]

I have a few 1.44MB floppy drives (all from SE/30s) that I would like to recap. I noticed the video from @JDW about this subject, but in the linked cart one of the capacitors is discontinued. I'm unsure what to replace it with that has a similar footprint/values/etc - anyone have an updated list?

Thanks!

 

[Paolo B]

As usual with capacitors:
Same capacitance > must have
Same voltage > nice to have, but can be higher (e.g. replacing 10 V with 24V would be OK)
Same size, distance between the leads > must have / nice to have as long as they fit nicely
Same temperature rating > nice to have, can of course be higher (e.g. Replacing 85 C with 105 C)

 

[JDW]

I noticed the video from @JDW about this subject, but in the linked cart one of the capacitors is discontinued.

I have updated the Mouser Cart.

But keep in mind that I have the following important note displayed directly under that Mouser Cart URL in my video description...

Before you buy this cart, check your 1.44MB drive's capacitance values so you can confirm your drive is the same as my 1.44MB drive.
NOTE! Not all the capacitors are the same as 800K drive capacitors, so beware if also buying for an 800K drive. You should also consider recapping other boards too so you can add those capacitors to get your balance high enough to qualify for free shipping. I make no commission at all on Mouser Carts. I just provide it to be helpful. See my 800K drive video for details on how to go about recapping, since the location of capacitors is the same on the 800K and 1.44MB drives.

 

[Mk.558]

The Mouser cart may come and go because of Year 2025 "Problems". In my signature, there's a image link in the Working with Disk Images section for the capacitors for a 1.44MB Sony drive.

 

[djc6]

In my signature, there's a image link in the Working with Disk Images section for the capacitors for a 1.44MB Sony drive.

@Mk.558 I don't see a signature on your post, do you have a link you can share? Thanks!

 

[JDW]

In my signature, there's a image link...

Interestingly, I am not able to see your signature when viewing this page in Safari on my iPhone 15 Pro Max, as you can see from this iPhone screenshot...

But I am now using Safari on my 5K iMac, running macOS Monterey, and I can see your signature now. I consider that to be a forum software problem that needs to be resolved. Tagging: @fogWraith

For now, here is the URL you are referring to:

Classic Mac Networking v4.0

 

[S. Pupp]

@Mk.558 I don't see a signature on your post, do you have a link you can share? Thanks!

Direct link to capacitor image

 

[fogWraith]

I consider that to be a forum software problem that needs to be resolved

Could be a theme issue, @Branchus and or @eric

 

[djc6]

I received an email today from Mouser that three of the caps on the list you just updated are now EOL. They are still currently available, so people should stock up !

 

[JDW]

Dealing with Mouser’s incessant changes is a full time job, so because they are still in stock I’m not going to waste time swapping them out for now. There are always replacements, so I’m not worried, but sometimes the only replacements available have slightly inferior specs (often ESR). So getting what’s in the cart now is a good idea.

 

[Mk.558]

Also don't select the option to ship it all in one bundle. I did that for my SE/30's analog board and PSU, and then COVID hit. I didn't get the final caps until almost 2 years later, because when one would come available, another would go out of stock.

 

[JDW]

...when one would come available, another would go out of stock.

Some don't fault Mouser for that but I do. It's maddening.

Console5 is an alternative for some people because kits are always in stock and there are no out-of-stock capacitor games to play, but they don't have every kit needed, and it's not easy to figure out the part numbers and specs of their caps.

When people tell me to swap out caps, I make time to do it. But I don't make time to watch all my carts all the time, because again, it would be a full time job. And then there are times when I do a swap only to see another cap in the same cart go out of stock a day later. Crazy!

I think what some people do is find a substitute on their own so they can actually place the order. And so long as it will physically fit and they have experience doing such swaps, it will work out fine in the end.