Recent content by CompuNurd

I have had an Apple II Plus for a while, but never got around to messing with it. When you turn it on, it beeps once and the floppy drive spins and doesn't stop until you press the reset button. It doesn't load any disks, and it doesn't sound like it is trying to read the disks. I have pressed...

It was audible from several feet away. If you want it, I'll send it to you for the cost of shipping, shoot me a PM. Better someone make use of it than it being trashed.

The optocoupler seemed to fix it, but there was a humming, presumably from the transformer, and a lifted pad. I don't trust it, so I will be scrapping it.

I have tested the optocoupler and it seems to be fine (unless I tested it wrong?). I guess it never hurts to try. The model is CNX82A, Mouser and Digikey do not stock it, but I found some on eBay.

What's it supposed to read? My meter has the diode and 2Kohm functions together. When I measure, the reading is ~.200 then rises up to ~1.700, and keeps going.

Yes Hmm. All colored wires show continuity with the two black wires. I don't see a solder bridge anywhere....

I just recapped an Aztec PSU from a Mac LC, and when I go to turn it on, it just ticks. The solder connections look fine, is there something I am missing? The voltages I am getting are: ~4.5 from the blue wire, ~1.25 from the yellow wire, and ~.60 from the orange wire.

I still have cap kits for TDK PSUs. PM me if you want a few.

Track day bro! Maybe some rally racing while you're at it. That'll do

Couldn't you just pick it? I mean, I have a Q950 and the lock doesn't look any more complicated than a cheap Master lock. Probably 5 minutes with a paperclip and you're good to go. You're going to need a tension wrench and pick, which can be made with a paperclip or hairpin. There are plenty of...

I second this.

A set of capacitors is around $10-12, probably less if you bought in wholesale from Mouser. With the proper tools (air compressor, hot air gun, proper soldering station, etc) it takes me about 30-45 minutes to do a board, maybe less. I have moderate soldering skills and can usually re-wire...

I painted the inner chassis pieces of my SE/30 black, but the chrome looks so much better! How does one go about chrome plating a chassis, anyway?

I am currently working on my SE/30 and recapping the PSU. I would like to replace some, if not all of the capacitors on the analog board. I see a few bright green and bright blue capacitors on the board. Could this be indicating that those are high frequency capacitors? If anyone has a list of...

I finally was able to get the board out and tested a few hundred points of continuity tonight. I ran a few wires but haven't tested the board yet since the PSU has capacitor failure. In the meantime, I thought of a few visual modifications to make inside the unit: -paint frame black -paint...