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This stuff absolutely works, and a little goes a long way. You might have to look for or ask for it a larger automotive store. It is sold in very small tubes and is fairly cheap.

Machined pin sockets SEEM to stay good almost forever. Although they are very expensive (and now hard to find), that is the only kind that I will use in a project in order to avoid future...

This is a great project potentially useful to a lot of owners of other systems. Hardly anyone makes them commercially anymore and they were expensive last time I looked. I recently made a special...

You have to give Iomega some props naming their product “Clik” after...well, you know... :)

I’ve done that also, expensive on a large object, but it works. But I’ve received 10 pound objects wrapped in a SINGLE SHEET (1-ply) of bubble wrap, as though it was a magical force field against...

You have to have a major hate to do that. I don’t know how many things I’ve received off of Ebay with that type of packaging. I would not have a problem with them charging something reasonable AND...

Interesting, I have 35 year old EPROMS in rare equipment that are still OK but I removed them and backed them up “for insurance”.

To the best of my knowledge, the phosphor color of the tube makes no electrical difference, although it might have a SMALL affect on brightness settings. For example, I could get green, amber, or...

Oddly enough, this is what the scan line device for arcades is trying to reproduce, or fool your eye into believing that it sees. In my case, i adjusted mine so that every x number is somewhat darker.

Search SLG3000 scanline demo on Youtube. IMO, this makes an LCD look a liile more like a CRT. It isn’t difficult to build one.

There are also several schematics floating around for building a...

One thing that I added to mine, which would be of some interest to classic computing, is a "scan line" device that you can put between the machine's VGA output and an LCD screen. This is a very...

I really like the looks of the IMSAI replica from Australia but it’s not cheap, shipping will probably be brutal, and availability is unknown.

I built (scratch, not from plans) a very small bartop with one of those "60-in-1" Chinese boards. This was the smallest design I've seen with a joystick, rollerball, and a coin acceptor. I feel that...

Looking at the Motorola code, it uses Taylor series (precalculated). All you need is SIN, you can derive COS and TAN from that. And the code shows why all these packages work by default in...

This was my experience, if it would be of any help:

Thirty+ years ago, I wrote a TSR program for a company that contained a four-function calculator as a "bonus" function (not the main purpose of...

i had no idea that the MIL mod-8 board set had been reproduced. The board set is probably not cheap, but where else are you going to go for one?

As I recall, those boards used first-gen TTL and...

I know that this will offend purists, but the PIDP8 (or just SimH) does a credible job with this game or a variant thereof, playing over networks and displayable with a program written for the...

That cloudiness may be the “getter” vaporized or the filament is a little old which is normal. My experience is that CRT’s either lose vacuum in spectacular fashion or the little nipple at the end...

i'm a little confused about this but it looks with an ESP32 with all the peripheral goodies and hardware to connect VGA, mouse, and keyboard. It might even have SPI PSRAM. Good price, you couldn't...

I wonder what the ratio of harvested keyboards to repurposed keyboards might be. Now MAYBE someone with a keyboardless 264x made out, but I’m a naive optomist.

I know what you mean. In the 80's, we were visited by a Taiwanese distributor of ours. They gave us our business cards with their photos on them (photographic paper), which was very unusual at the...

I thought at first someone somehow took pics of my basement but then I realized that it was better organized.

Darned shame about losing it.

I did this with a strange 1970’s wide CRT on an HP terminal. I used a long nichrome wire with wooden dowel handles and 12v from an old PC-AT power supply to cut/burn through the material. I believe...

I have a few ADM3a’s restored in good shape with new CRT’s. No door over the DIP swiches but I made some. I’ve considered adding a screen saver circuit because these terminals don’t have that...

Point to point wifi has been been done with ESP8266 but probably not with full hardware handshaking. Could be done, tho...