The Glitch Works

1,402 orders since Oct 13, 2017

Buena Vista, VA, United States of America

Ships from United States of America.

Custom Work Available

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Official Glitch Works, LLC Tindie Store

Overall Rating:

Review Breakdown

Average Ratings

Product: (4.87)

Documentation: (4.38)

Shipping: (4.74)

Communication: (4.75)

All Reviews

Aaron | March 2, 2023

All good

For GW-DEC-1 Prototyping Board for PDP-11, PDP-8, etc

Very satisfied - a nice board, just as described. Hopefully I can work on some cool PDProjects with this :-)

Nicholas | Feb. 23, 2023

Excellent Drop-in Replacement

For Glitch Works GW-1225-1 Dallas DS1225 Replacement

I used the GW-1225-1 as a replacement for a matching Dallas chip in an old Pit Boss video poker machine. Worked instantly without out any setup, and the video poker machine runs like a champ, again. Thank you!

Dennis | Dec. 26, 2022

I bought this to replace a DS1287 in an Epson laptop.

For GW-12887-1 DS12887 RTC Replacement Module

At first the computer would work after I entered all the CMOS values. They were retained when I rebooted with Ctrl + Alt + Del but lost if I powered down. Then I bent the two pins out of the way that are on the 12887 but absent on the 1287. And voila! It works perfectly.
Dennis Fenton

William | Nov. 19, 2022

Worth it

For GW-12887-1 DS12887 RTC Replacement Module

I used this in an old Tektronix TLA 704 logic analyzer, which had the 12887 soldered directly to the board (ugh). This at first seems pricey considering there are hacks to add this same functionality to an existing 12887, but the module is really nicely made and convenient and, I think, kind of cute. Heads up this seems to have the same pinout as the 12887 except for a couple pins (I think 21 and 22) which weren't there on the 12887 in my machine. I opted to bend them up to avoid doing any more unnecessary desoldering in case it didn't work. But it did! Like a charm. Unplugged the machine for a while and plugged it back in just to be sure.

Jim | Nov. 3, 2022

Great drop in replacement

For GW-12887-1 DS12887 RTC Replacement Module

This works just like the original. No issues with any of the machines I have tried it on. From late 80s microchannel PS/2 to late 90s Pentiums, no issues at all. The only downside, if there is one, is the look. It just doesn't look right. However that got me thinking about a 3d printed cover for the chip and battery. Don't have time to mess with it right now, but I will look into this over the winter.

Oh, and a surprise is that it came with a battery. I wasn't expecting that, but it is a nice touch that it was usable right out of the box.

Ford | Oct. 18, 2022

Saved my logic analyzer!

For GW-1387-1 Dallas DS1387 Maintainable Repair Board

I needed to replace the dead battery in the DS1387 in my logic analyzer, and this board did the trick! It's especially convenient if you have a DS1385.

Emil | June 25, 2022

Quality product perfect for old S100 systems

For Reproduction Solid State Music T1 S-100 Terminator

Bought this as I have an old Cromemco Z-1 system with a MASSIVE unterminated 21 slot S100 backplane. Been on the lookout for an active terminator board for years but they are hard to find and expensive when you do. Thought I'd have to make one myself on a prototype board and then I came across this repro SSM terminator. The board is of high quality. It looks just like an old hand designed board with thick traces and nice big solder pads. Being a short board, it doesn't get in the way of my crimped DB25 connectors behind the final slot. I can see why this board was reproduced as it does the job without being a pain in the backside. It's an easy build too. Probably unnecessary as I'm running a 4MHz Z80 but I do plan on using the machine as a testbed for other boards I plan to build, some of which have faster CPUs that require active termination.

As a side note, I live in Australia and wasn't expecting to see this for quite a while considering how much Covid-19 has affected the speed of shipping. I was pleasantly surprised at how quickly it got here.

Chris | May 30, 2022

Simply the BEST option for a DS12887 replacement

For GW-12887-1 DS12887 RTC Replacement Module

I have several vintage PCs where I have used these chips, ranging from a PS/2 Model 30 286 to a Dual Pentium Pro system, and everything in between. These are of the highest quality and have a great fit and finish! I couldn't be more pleased. Naturally, installation is a breeze, and the battery placement makes changeout a snap.

Highly recommend!

Steven P | March 17, 2022

All amazing

For GW-1687-5 Dallas DS1687-5 Maintainable Replacement

Product is excellent, high quality, all great quality, great service, nothing bad to say, thank you!

Gary | Jan. 28, 2022

Replacement battery chip modules

For GW-12887-1 DS12887 RTC Replacement Module

These chips have been used to replace dead original Dallas battery chips.
They are working just like the original chips worked. I am very pleased with their performance.

Don | Jan. 26, 2022

Highly recommended

For GW-12887-1 DS12887 RTC Replacement Module

This brought my VAXstation 4000/90 back to life with a minimum of fuss. This is a great solution for systems which require Dallas chips!

Robert | Nov. 28, 2021

Worked perfectly in HP 3000

For GW-12887-1 DS12887 RTC Replacement Module

Just replaced the Dallas DS1287 in my HP 3000/927LX with this module and it worked perfectly. The system requires a working RTC to even boot, so this was a huge help in restoring this retro computer. Glitch Works shipped the parts immediately, I was shocked how fast they arrived! I could not be happier.

Mark | Oct. 18, 2021

Great PCBs

For GW-A2-1 Glitchworks Apple II Prototyping Board

Great quality PCBs! Lots of building area & gold plated slot connector pins - the pictures show it all. If you're looking to prototype an expansion card for the Apple II then here you go, if not then why are you here.

Ian | Oct. 15, 2021

Brought a classic back to life

For GW-12887-1 DS12887 RTC Replacement Module

I have a really rare early dual Pentium Pro motherboard (AMI MERLIN DP). The hardest part was removing the old Dallas RTC. Once this was done, installation was a snap, and it works great.

James | Oct. 3, 2021

Great seller and product

For GW-12887-1 DS12887 RTC Replacement Module

Dropped it in my 286 and it booted up like a champ. Great quality, shipping was fast, and seller was communicative - I highly recommend!

Richard | Sept. 29, 2021

Great device and a lot of fun to assemble

For Glitch Works XT-IDE rev 4A

I never thought I could hand assemble something that would slide into an ISA slot and actually work. It's a nice sense of accomplishment doing this kit!

It brought my Epson Equity II back to life! This is the computer I grew up with.

Vitor Emanuel | Sept. 23, 2021

Great Replacement

For GW-12887-1 DS12887 RTC Replacement Module

Bought one of this to replace an Via vt82885n / Houston Tech ht12888a and worked like a charm. Has a good build.

John | Aug. 30, 2021

It works!

For Glitch Works XT-IDE rev 4A

What else can I say, seems to work just fine in both systems I've used it in so far. Fun and quick kit to build.

Pavel | Aug. 30, 2021

Perfect replacement for retro computer RTC chips.

For GW-12887-1 DS12887 RTC Replacement Module

I used it as a replacement for ODIN OEC12C887A chip with sealed in battery that is not user replaceable. The GW-12887-1 DS12887 RTC Replacement Module was an easy replacement, works just like the original and has replaceable battery in case the one that came with dies one day. I'm glad these replacement modules are being made to keep our retro computers going.

Ronald | April 25, 2021

Absolutely worth every penny. I'm am very pleased.

For GW-12887-1 DS12887 RTC Replacement Module

I have an old Pentium motherboard and the Dallas/RTC ran out of juice. It was supposed to be my MS-DOS machine and this issue complicated that. Thankfully the RTC on this motherboard was socketed. Ordered the replacement and plugged it in. The machine fired up like it was brand new. I am extremely pleased because this machine is really old. I think I received it back in 1997. Thank you.

Michael | March 15, 2021

Superb!

For GW-12887-1 DS12887 RTC Replacement Module

I was amazed to discover that someone in 2021 was making replacements for the old Dallas RTC modules. I am a vintage PC geek and was disappointed to discover that my lovely Gateway 2000 P-60 DOS PC would not even boot or see the hard drive because of a failing RTC module. Then further dismay when I realised it was not a simple matter of replacing a cell watch type battery on my board. But then along comes this GW-12887 to save the day!! works flawlessly, simple pop out pop in replacement (luckily mine was socketed) and my PC is working again and I can relive my childhood playing all those awesome DOS games I remember from my youth. Fast delivery and great service all round, awesome!

John | March 13, 2021

I bought a bare circuit board - good quality and easy to ass

For Glitch Works 8085 SBC rev 3 Single Board Computer

I bought the bare PCB for the 8085 because I already had most of the components. I bought the CF card kit that goes with it. Boards are of good quality, and were easy to assemble. In hindsight I should have bought the complete SBC kit as it then comes with software, as this would have streamlined things. The CPU board is quite flexible about ways the memory can be configured. I am happy with my purchase and support I received. Thanks
John Bilston

John | March 8, 2021

A good addition to the 8085 SBC.

For Glitch Works 8255 PPI Parallel Card for Glitchbus

The 8255 is a great addition to any 8085 SBC. The ability to have input and output bits available makes the controller useful for many applications. It would be better if the port C pins were brought out to a header like the other two ports.

Nathan | Feb. 8, 2021

Great replacement

For GW-12887-1 DS12887 RTC Replacement Module

I've bought two to replace a DS1287 and a DS12887A. Both worked very well and the battery can be easily replaced without needing to replace the entire chip in the future.

Jacques | Jan. 28, 2021

very good seller, good quality item, very good communication

For GW-1286-1 Dallas DS1286 Maintainable Repair Board

The seller was very well served. I asked for explanations on his product, and he answered me very well!

James | Dec. 18, 2020

Works as designed and as intended!

For GW-12887-1 DS12887 RTC Replacement Module

Bought this to revive a Tandy 2100 Model 10, and this did exactly that. Direct replacement and worked without any issues.

Robert | Nov. 15, 2020

A Great kit that's fun to build!

For Glitch Works R6501Q/R6511Q Single Board Computer

A Great kit that's fun to build! The board is well designed, clearly labeled, and easy to assemble. The documentation is excellent and the YouTube video is a step-by-step explanation of the entire build process . The kit does not contain sockets for all chips. I know its not necessary for all chips to be socketed, but when I'm doing a build I like to socket everything. This added a days delay in my build as I didn't realize how low on 20 pin sockets I was and had to order from Amazon. The R6501Q has double layers of pins and the instructions specifically recommend not socketing this chip. This was difficult for me to adhere too, but in the end I decided to follow that recommendation. After completing the build it booted right up (after changing my serial port speed to 4800 which is mentioned in the video but I missed it the first time).

Vernon | Nov. 12, 2020

Great board for restoring a vintage computer.

For GW-12887-1 DS12887 RTC Replacement Module

Great board for restoring my vintage computer that had a bad RTC DS12887 chip. Nice and compact and fitted well.

Jim | Oct. 25, 2020

An interesting project and a great kit!

For Glitch Works R6501Q/R6511Q Single Board Computer

This is a great little kit with an unusual processor. I started on the 6502 back in 1980 (summer before my senior year in highschool with an OSI C1P), so the 65xx processors have a special place for me. PROS: An interesting processor to play with, Ports B and D are brought out to tinker with, worked out of the gate. The CONS are minor: the packing let things rattle around an a few of the chips had minor bends to pens from handling, the manual assumes a certain level of experience (for example, polarity for C4-C8 isn't clear unless you're used to the square pad being "positive" and Pin 1 of the resistor pack is marked with a dot). With the limitations of the processor, you can't port a lot of 6502 software straight over, but that's half the fun and it will be interesting to see just what it's possible to get going on it. I wouldn't hesitate to recommend it to someone interested in the 65xx processor family and who has done a bit of building. Thanks! --Jim W4JBM

Mark | Oct. 12, 2020

Excellent kit and documentation!

For Glitch Works R6501Q/R6511Q Single Board Computer

This is a great example of a kit done well. A lot of thought has clearly gone into the board design, packaging and instructions to make assembly go smoothly. I built mine in about 90 minutes, including troubleshooting to find the one pad that I forgot to solder that prevented it from booting on my first attempt. If you've never built a computer from the PCB up before, this one makes for a solid start!

Jenna | Aug. 11, 2020

Simple and effective

For GW-1687-5 Dallas DS1687-5 Maintainable Replacement

This replacement RTC unit works well. I couldn't ask for more. This will be much easier for long term maintenance & allow battery-less storage.

Jason | July 7, 2020

Using more modern storage with an OLD XT couldn't be easier

For Glitch Works XT-IDE rev 4A

Almost 2 years have passed since installing the XT-IDE in my IBM 5155 with the slot-8 module. It still works exactly as intended with zero issues. This is definitely the best option for upgrading an XT's storage. Booting from compact flash cards makes the XT about as fast as you can get it. A 256MB card is more than enough for my purposes. Component suppliers for the bits that make up the XT-IDE can be painfully slow though. Keep that in mind when ordering as this will extend the lead time.

Derek | May 12, 2020

Perfect for my Vintage Computers!

For Lot of 10 NOS Athana DSDD 360K 5.25" Floppy Disks

These work perfectly in my Tandy 1000 EX, Apple //c, Apple //e and Commodore 64 computers - highly recomended.

Steve | April 29, 2020

Gave up on it

For Reproduction Solid State Music IO-2 S-100 Board

The board is not bad although some of the traces are very, very close to each other. The problem is the SSM documentation which consist of a bunch of hand-scratched notes and a few clips from data books. It's more of an experimenter's board. For a serial interface, most of the traces are missing, and wire-wrapping or soldering the connections quickly gets to be a mess. In the end, however, it was the lousy vintage documentation that killed it for me.

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