Search results

I am having trouble finding technical documentation on the IBM Portable Personal Computer 5155 (which I'm going to simply refer to as the 5155 from here on out) in regards to the voltages that the analog board can output to the CRT. And from seeing Adrian Black try to repair a terminal recently...

I realize the answer could be that I bought a PC Cheaps... I mean, PC Chips motherboard on eBay, and a 50% POST-on-power-up ratio should be considered good. However, this issue could extend to other boards, and maybe there is another issue that is the cause. I have a PC Chips M326 V2.7...

On the Apple II series, Apple used a different DIP socket for the keyboard, game pad, and for the Apple II and II+, the memory chip at E3. It was a socket designed to accept an IDC ribbon cable with a DIP plug. I need three of these sockets, and I’m having trouble finding them partially because...

Update: Apparently, despite having installed countless ATX I/O Shields over the past 25 years or so, I did it wrong. Apparently, I should have started with the botton edge, then pushed the two sides in, and finally pushed the top side in. If you start with the top edge, you won't have enough...

Fellow Tinkerers, I have bought one of those DOOM-playing "bump bars". And not content to simply playing DOOM, I want to get MIDI out to work. Since the bump bar was never designed for MIDI out, I have a MIDICloud RS-232 from Serdashop so that I can attempt to use one of the serial ports for...

My Macintosh LC had me stumped. This started as a simple chip swap to replace a dead DFAC chip. Now that I’ve done that, I am now having sound volume issues: The startup chime is quiet. System sounds are quiet, even when I set the volume to 7 in the Control Panel. The sound is quiet from both...

I have motherboards, processors, graphics cards, and sound cards. I even see how current YouTube creators are currently trying to show how these items compare against others... which is why I would like to know of benchmarks and applications you wish other YouTubers used for their comparisons...

First time SGI owner here with no previous experience with the platform... seems like I am jumping in head first as they say. I picked up an SGI Octane from a swap meet a couple weekends ago. It was the base model, but hey, I paid $75. I then found an IP30 030-0887-005 system board on Mercari...

Are you an Apple ][ fan? Do you have a YouTube channel, blog, or other medium for which you create content? Put the two together, as it's #Appril2, the month for celebrating all things Apple ][! Learn more at appril2.com.

On my livestream last night, I attempted to recap the Delta SMP-120EB power supply that was in my Performa 600. And after initially forgetting to reconnect the mains power connector, I measured 4.97V on the +5V standby output... yay! However, my joy quickly faded when I tried to power up the...

I recently acquired a Performa 600, and it’s in need of a recapping. It has the Delta SMP-120EB power supply, which was also used in other Mac II series models, including the IIvx. My usual go-to, Console5, is out of stock and didn’t publish a list of capacitors for this power supply. Neither...

I have two Macintosh SE computers, both have Sony CR-44 power supplies. I have recapped one of these supplies with a kit from Console5. Both power supplies are exhibiting the same issue: the 12V output is measuring nearly 12.8V, which is definitely out of spec and is causing artifacts on the...

Forget fancy Photoshop trickery to pull it off, I would like to show a 512x384 image full-screen on my Macintosh SE for video thumbnail creation. What is the best way to pull this off? Rounded corners are OK, but I don't want the pesky menu bar or mouse cursor getting in the way. I'm open to...

I usually like knowing what I am buying before using "Buy It Now" on eBay... but when you see an E-Machines video card pop-up on eBay what will cost you $29 shipped (OK, $29.01), and there's a good chance that card is QuickDraw accelerated, then you just buy it now and figure out what it is...

If you're ever in my office perusing my bookshelf of computer references, there is one odd title you will run across: It is "Scooter Computer & Mr. Chips: The Computer in the Candy Store" by Leslie McGuire. And while it is not my childhood copy of the book, it's there for a reason: one of my...

Kansas Fest happens in July, and what better lead-up to that event is there than a Month to celebrate the Apple ][, including it's clones and related cousins (the Apple I and the Apple ///) on social media? I can't think of a better way, either! So let's figuratively blow-up social media and...

I just want to be able to use a mass storage device with my Amiga 1000... so when I saw this C-Ltd. SCSI-1000 appear on eBay, I bought it now. Maybe I should have done some research first. Maybe I should have spent twice as much and just bought a Parceiro (assuming you can get them still). But...

Based on information that I found online, the on-board video on the Macintosh IIci and Macintosh IIsi only support “sync on green” mode, which is a problem if you don’t have a monitor/scaler or other video device which supports this mode. Well, I have a IIci, but nothing old enough to do sync...

I have a Macintosh IIci with an Astec Power Supply. During my last livestream, someone asked me if the power supply had the "infamous" daughter board... to which I had to answer yes. I think they mentioned it was due to the op amp on the board... or was it an optoisolator? I was trying to solder...

First Mac: LC First Owned Mac: Performa 5215CD (don't judge) Favorite Mac: it's a toss up between the iMac G4 and the PowerMac G4 FW800 Strengths: I break things Weaknesses: SMD soldering, desoldering, eBay, home-cooked food Hi, my name is Justin D. Morgan, but you can call me Justin. I...