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@sfiera Can you please measure the DIAMETER & LENGTH of your 47uF 63V caps?   (D=6.3mm & L=11mm?)

@sfiera Can you please measure the DIAMETER & LENGTH of your 47uF 63V caps?  (D=6.3mm & L=11mm?)  The one nearest the connector in your photo seems the most critical in that any replacement cap with a bigger diameter would not fit there. True, there are components on the bottom of that...

@sfiera A thousand thanks for the detailed photos of your mouse!  Did that come with a Macintosh Plus?  Also, can you measure the DIAMETER of those caps?  (D=6.3mm & L=11mm?)  The one nearest the connector in your photo seems the most critical in that any replacement cap with a bigger...

@Crutch Mac Plus mice have electrolytic caps inside?  My Mac512 mouse doesn't, so I'd love to see a photo of yours! @Mighty Jabba Bless you for more excellent photos!  The height and diameter of those radial 1uF 50V caps seems to be right at the limit of what can be installed, which means any...

@Mighty Jabba Perfect! THANK YOU!

Thank you for the clear photos!  I now have 2 questions: Q1: Does the right side (not shown in your photo) of capacitor C1 say "50v 1µF"? Q2: Do you have calipers or another means of measuring the distance between the top of that circuit board (onto which the capacitors are soldered), and the...

First, there is no fluid-filled electrolytic capacitor on earth that has eternal life.  Next, I have experienced bad caps on my IIgs ADB keyboard attached to my SE/30.  My SE/30 would hang suddenly for no apparent reason, and then I traced the problem to the electrolytic cap.  After changing the...

@desertrout Thank you for the link. It is interesting as the SMK version photo doesn't show any capacitors at all, indicating they are probably hidden under the metal frame. The Mitsumi Japan edition seems to have only 2 radial electrolytic capacitors, both of which I confirmed are 1uF 50V and...

Another photo I found below indicates there are two different versions of the Mac Plus extended keyboard.  I see 2 Radial caps in that photo below, whereas there are 2 Axial caps in the photo in my opening post.

Do any of you own a Mac Plus extended keyboard with numeric keypad? Could you please confirm the capacitance & voltage ratings of axial capacitors C1 & C3 shown in the photo below?  I think there are only those 2 electrolytic capacitors, but if there are more, please ket me know that...

I can only assume that "MB" = "motherboard". I think that is very interesting. Thank you for sharing. And while I am no fan of overbearing forum moderation by an stretch of the imagination, I feel strangely compelled to point out that this thread is solely focused on CRTs, which are totally...

Glad to hear he’s alive, to be sure. But it still doesn’t explain his three month hiatus from this forum, especially because he sent me a ROM for testing quite sometime ago and I’ve been hoping to hear his feedback on that. His ROM is an alternative to the ROM-inator II.

Yes: https://www.bigmessowires.com/mac-rom-inator-ii/ As for Zane's ROM, well, he's dropped off the planet for the last 3 months so I honestly don't know what the situation is.

In my experience, there's always something to work on.  For example, have you recapped your SE/30's floppy drive, mouse and keyboard?   :-) By the way, what price did you pay for your higher end SEASONIC?

The last we heard from @ZaneKaminski in this thread was August 9th.  It's Oct. 13th today.  I can understand being very busy for a few weeks, but it's been more than 2 months.  I can't help but worry about what might have happened.  Zane, if you are listening, despite your busy schedule, please...

Well, I tend to hide my blunders and only show the proper way to go about something on my YouTube channel.  However, there are other repair guys who post a shocking amount of screw-ups; and although they get a nutcase in the comments every now and then, they have vastly more subscribers and...

The most interesting thing I learned at the link is they seem to refurbish/replace the phosphor an existing CRTs!  And, you have a choice of 50 different phosphors too!

That’s really unfortunate. I by no means wish to belittle your plight, but man, it’s too bad you didn’t have a video of that! I don’t think anybody has a video of a vintage Mac CRT doing that on YouTube!

Honestly, I've never had to replace the pads.  I simply have read about other people doing that for many years with success.  I would say "soft on the surface yet firm" should guide your felt selection, as well as thickness.  The felt needs to be thicker than the depth of the circular plastic...

No felt pad is a no-go for those drives. You need to cut a thick circle of felt to fit the plastic holder, then test again.