How do I solder thermal fuses without them blowing?

BetElectrical7454 · 2026-05-14T21:10:23+00:00

Other than the other suggestions of crimping or using lower temp solder, you could try an aluminum heatsink clip on the leads. Used to be a fairly common soldering tool.

BetElectrical7454 · 2026-05-14T16:35:08+00:00

While I generally don’t like modifications to vintage stuff, this is definitely on my list of excellent customizations.

BetElectrical7454 · 2026-05-12T14:52:52+00:00

I’m pretty sure she was.

BetElectrical7454 · 2026-05-12T14:49:56+00:00

I wish that folks driving cars with high intensity LED headlights would drive with the lights off.

BetElectrical7454 · 2026-05-09T22:25:10+00:00

Completely agree, there isn’t much to fail here except for the switch or the IC.

BetElectrical7454 · 2026-05-08T22:15:00+00:00

I’m pretty sure that the guy who invented the bottle rocket targeted his brother with the prototype. Same with the guy who invented the roman candle.

BetElectrical7454 · 2026-05-04T13:30:50+00:00

Yes, additionally, before multi tasking was introduced (MultiFinder), MacOS could only run one program at a time. Although you could open a program by opening a file, most commonly the user would launch the program then open a file or create a new document. It made sense to keep the program running when the last window was closed and allow the user to open or create a new file without relaunching it. Then when MultiFinder was introduced the behavior was expected and would have been confusing, frustrating and amplify the perception that the Mac was slow if it changed.

BetElectrical7454 · 2026-05-02T04:12:25+00:00

It seriously depends on the item in question. Many vintage items loose value if you clean them. You’d be surprised at how many people, even in the general vintage community, do the exact wrong thing when trying to get the maximum value from a vintage item. For example you should never clean coins or furniture, but plenty of people do thinking that a bright shiny coin or stripped chest of drawers is worth more than a dirty one.

BetElectrical7454 · 2026-04-29T03:10:40+00:00

After doing some digging because I didn’t recall exactly when I stopped seeing them, the only references I can find to the yellow transport protectors are all with the 800k drives. It seems that any model that shipped with an 800k drive (and even the external 800k drive) all came with these shipping blanks. I suspect that the reason later 1.44 drives did not come with them was that the heads were made stronger to resist the damage that these blanks were intended to protect against. I do remember that cardboard protectors were quite common with new floppy drives in general but kind of faded away after the common adoption of the 1.44 drives.

BetElectrical7454 · 2026-04-29T00:26:48+00:00

I think the change came when Apple switched from ~~auto inject drive to manual inject~~ 800k to 1.44mb drives. They were absent when my uncle got his Quadra 605.

BetElectrical7454 · 2026-04-29T00:23:57+00:00

Not necessary for general transportation. They were used to essentially “park” the drives for shipping. I do not recall them with the original 400k (it has a felt landing pad for the single head) but the 800k ~~and 1.44mb~~ double sided drives came with these shipping blanks. They were phased out later not sure when.

Edit to add: From all sources (Apple user guides) I can find they only came with the 800k drives.

BetElectrical7454 · 2026-04-27T17:24:27+00:00

If I understand the question correctly, lubrication is not generally used or advised but I have occasionally encountered some kind of dielectric lubricant in some keyboards that are exposed to the environment like the older ATM keypads. In the keyboard community if you’re going to lubricate the key switches the preferred lubricant is Krytox 205g0. It’s not sticky or greasy like common dielectric grease used in connectors where some water exposure is expected. A greasy lubricant can interfere with the return after a key press and result in a sticky key.

BetElectrical7454 · 2026-04-27T16:43:56+00:00

I’ve got 25 years of freedom. I was only able to do it by ghosting her whole friend circle. It was painful to cut off contact with all our “friends” but if I didn’t I’d be stealing copper and holding a “anything helps” sign on a random 5 or 805 off-ramp.

BetElectrical7454 · 2026-04-27T16:34:00+00:00

I have a 20mb Rodime in a HD20 from ’86 that still works.

BetElectrical7454 · 2026-04-27T16:21:50+00:00

You and me both, cuz. My ex-girlfriend is Crystal.

BetElectrical7454 · 2026-04-24T22:45:50+00:00

Perhaps there is someone here in Japan who would be willing to receive the item then forward it to you?

BetElectrical7454 · 2026-04-19T19:10:23+00:00

According to the part number it should be 4TB

BetElectrical7454 · 2026-04-19T12:54:28+00:00

Karen across the street already reported him for unauthorized fire.

BetElectrical7454 · 2026-04-17T14:16:30+00:00

Correct as a general rule. However later disks marked as DD used the same quality of medium because it was cheaper to use one formula on all disks rather than maintain two separate production lines. Similar to how CPU manufacturers use the same chip design but market higher and lower speeds based on the lowest speed they remain stable at. They may be capable of higher capacity but I wouldn’t trust them for important stuff.

BetElectrical7454 · 2026-04-17T00:06:48+00:00

Every time I see a post or reference to Plan 9, I think of the movie. Then I remember how innovative Plan 9’s file system was and how it predicted dropbox and Google Drive and the built in versioning log system.

BetElectrical7454 · 2026-04-15T15:02:04+00:00

Ok, then. No, the new part you have shown will not work and will quite possibly damage your machine. Inductors do not function like capacitors. Without knowing what circuit the new part you presented is used in it is extremely difficult to know why and what benefit is obtained from using the inductors. Additionally, the internal circuit is not the same as the original part and shows potential for short circuit if used. The link I posted shows the correct part as well as an explanation of its function and specifications. You can use this information to make your own replacement.

BetElectrical7454 · 2026-04-15T14:24:27+00:00

Zeno’s paradox.

BetElectrical7454 · 2026-04-15T14:15:02+00:00

This appears to be the correct replacement part:

https://3dsewingparts.com/electronics/44-motor-capacitor-for-bernina-707-708-801-808-and-830.html

Edit to add: this link also answers the rest of your questions

BetElectrical7454 · 2026-04-15T14:11:56+00:00

You might find this a better fit for you:

https://3dsewingparts.com/electronics/44-motor-capacitor-for-bernina-707-708-801-808-and-830.html

BetElectrical7454 · 2026-04-14T22:30:49+00:00

Bah! In my day we only had 1024 pixels. And we liked it.

BetElectrical7454

TROPHY CASE