Recent content by Garrett

I share the same feelings regarding the TechStep. I was so excited to get my hands on an original one when an opportunity presented. The sad thing is - I hardly ever use it. I have a stack of 4 or 5 defective IIsi boards. Just for giggles, I connected the TechStep to a few. Boards one and two...

This is so fascinating. I’ve never thought to open one of these up for inspection. I don’t think my ultrasonic cleaner has killed any oscillators, but I do recall dealing with one damaged due to battery corrosion. My mistake for trying to reuse it on an SE/30 reloaded board. On a related note...

The CRTs themselves are all interchangeable from the 128k through the Classic II. What is not interchangeable are the yokes and neck boards. If you have a dead tube, you'll have to swap over the neck board and yoke assembly from the destination machine. There's a caveat though - if you move...

Just to close the loop on this for others following along. I did test the card in my IIci last night, and it works perfectly. Those that say the pins are bridges intentionally would seem to be correct. Thanks all for the responses! I see there's a v3 ROM dump for this card - would that provide...

I picked up a Thunder/24 card, and had a concern before trying it out. It appears a few pins of U5 are bridged (see photos). Is this normal? Can anyone else with this same card confirm? They don't look intentional, but it also doesn't appear to have been reworked either.

Fun looking support structure! Did you have some trouble with layer shifting during the print?

Great job with a very stubborn board! Goes to show that capacitor leakage can often be just as frustrating as an exploded battery, and nothing is a guaranteed "just needs a recap." Is it safe to say that the coming out of reset delay was caused by the sound chip? I'd be interested in whether it...

Sure thing, send me a message and we can discuss.

It's been a couple months now, but if I recall, the LCIII required me to drill through the via connected to the missing pad, and run a wire through to solder to the birdseed component on the bottom. The remaining repairs I was able to slide the cap over just enough to solder to the ground plane...

Thanks Mike - happy to help!

Wow - great idea on the dental tool! I've tried using an old Sonicare toothbrush for things like this, but it was never abrasive enough. I didn't realize Amazon had these scaling tools for relatively cheap.

One of my first Mac purchases after getting back into the hobby was a Classic from a nice lady in Minneapolis. I don't think I paid much for it, but had I taken the time to shake it first... well, I should have paid less! I was able to eventually restore the entire thing to working shape, but I...

For the past few months, I've been working on a design for the PowerBook 100 - a 6MB RAM expansion containing 12 512k x 8 PSRAM chips. I have a few PB100s, but only one had an upgrade past the stock 2MB expansion card. Based on what I read in the Developer's Note, if I choose to do so, I can...

Hi All - one more update. I tried the GemStart drivers and ran into similar issues - very unstable and crashed almost instantly. There are no jumper settings on the Performer board, but it should pull +5VDC from the PDS. Good call on the voltage check. I reflowed all the solder joints but...

Hello and thank you for the reply! I gave this a shot yesterday... no dice. The extension does load properly in System 6, and it will boot, but the second I try and do anything, the system gets unhappy. Trying to open the "About this Macintosh" window resulted in an illegal instruction bomb...