Видео

What is the execution speed like compared to the real Altair?

The Gigatron TTL as the name implies should be implemented with TTL chips (74LSxx) not 74HCxx or 74HCTxx otherwise it is not a TTL Microcomputer anymore!

Your display panel looks cleaner than my original. Built mine in the summer of 1975.

Can you interchange the wheels on a shark Detect Pro with an Shark Ion

Fixed mine…wasn’t dirty at all like the video. I started using a t20 bit but an Allen wrench worked best because some of the screws are deep in the housing.

Was thinking about those wheels and how much they have inside the gears and hub

That's exactly the spot where my Spot Bot's hose broke

Thanks, dude! Had half a toothpick somehow lodged in the wheel well, your instructions got me there in a second. 10 mins for the fix!

It's a fun little kit! Finishing up mine now. I bet you'd really like the new PDP-11 kit from Obsolescence Guaranteed!

Thanks for documenting all of this. It never occurred to me that the terminal has a battery in it. I'll be carefully discharging the CRT and the capacitors and following the same process to hopefully avoid corrosion.

That is so simple and extremely effective

Thank you for the console port settings.

6:33 I wonder if there is an alternative.

On a side note, a friend of mine used the basic idea of the Gigatron TTL computer to build a tiny control CPU for his FPGA RAID-Controller. Works like a charm as a little control CPU.

I never had much luck with the first 68000 it was kind of a slowpoke. What I did like was Motorola's decoupling of the DSP so you could run some things fast on a slow system. I used to run NeXT machines at work (the 040-33 mono slab was the best one) and really liked those until I discovered PA-RISC, which runs the same OS+software. I also kinda like the 68332 Motorola made a "credit card computer" engineering product out of that it was just stellar. I think nowadays the most fun way of doing all this would be to pair a CPU with a FPGA supported by open-source tools. By going that route you can build all kinds of two-chip solutions using vintage electronics... no need for high chip count anymore. I mean before the pandemic you could get SRAMs for free practically but now golly- I think if you have the original CPU and an FGPA then it's enough. Put another way if you're going to make a 68000 board then y'know that chip's appeal is really just the novelty of its form-factor... so nice maybe to pair it up next to a big honking brushed metal Xilinx part from 2013 or so!

In the mid 80s my neighbor wat a wwii vet and he said the g meant government and that no warranty was honored. But he also said that was if it was owned by the government and if a citizen owned it that they would honor a warranty but when he traded in or had one fixed it was 20 years after the war was over so time might habe been why they did. I know they do now because my brother got some old tools fixed for free and a couple swapped for new and it all had the g.

"G" stood for "Government crooks"

Snap-on specifically made tools for the government. I have a set of what you would think our quarter inch ratchets but they’re actually 9/32. They’re close to quarter inch but the socket won’t go on. Apparently they did this so people wouldn’t steal them take them home because nothing at home would work with them

That looks absolutely terrifying, but also very interesting!

Best breaker bar I’ve ever had….put a 2 foot pipe on it and very few things wouldn’t come loose

It actually means industrial finished (non chrome ). Any military tool had a different number associated with it

Yes, as a former snap on dealer, G is gov't sold tool....dealers are not supposed to repair them only take & replace with new tool. G was stamped on those from factory....but i never did, i would do the best i could to repair it.

What germanium diodes did you use? I can’t find the info. about that! Thanks!

And still working 😂

I had an odd looking snap on ratchet and the snap on dude wouldn't fix it for me

Trawling ≠ Trolling. Either I'm witnessing a change in words people use for reasons, or I'm being trolled myself.

This is a cool project but it seems like it’s abandoned. The website says they aren’t making any more kits. Also, the Tindie seller isn’t shipping to Canada?

While the war department did force companies to provide equipment and machinery, they paid for it. They did not just come in and take tools from snap-on by force. All of it was done under contract and with fair compensation.

Which version of the rim are you using? The GitHub has version 6.

Imagine if this was released in 1978.

All i heard was the government steals your shit.

still a thing after soo many years? a good way to recall the designer

Is it a stolen military rachet? I had some wrenches the snapon guy refused to replace because it was "stolen"

G was a a Snapon stamp for “government” hand tools. Former Snapon dealer here, but you can also look up SnapOn’s date code chart and it will tell you all about when your tools were made. Similar to a mint marking.

The tool nerd comment got you a subscriber

I don't believe the government just took the tools. They bought all the tools. That probably made Snap-on very happy.

Dope , thanks for the history brother.

Cool project

I got that same one. 1/2” drive

Mine are stamped T.e. I think it means too expensive

G stands for "Guarantee forever"

Snap-on refused to honor warranties on tools too many times so now I won't buy anything from them.

G indicates purchased under government contract

When I went to Job Corps in the late nineties the tools we got from the local Air Force Base even if they were Snap-on they were not warrantied because the military used them and they had a certain number on them that they knew were for military use😂

I have that wrench ?? ... by the comments I'm guessing it's worthless

So the government that bought planes from boeing, ground support vehicles from Oshkosh decided to take tools from snap on by force? The last year of ww2 saw the military spend 40% of the us gdp, adjusted for onflation the war effort cost 4 trillion dollars. I don't buy it that they just rollec up ro snappn snd says Uncle Sam needs your tools and were not paying for them. I belive the snappn probably had a cobtract to supply tools to the government for a price sure.

The g for government sure they give you rebuild kit but wait until they no longer have a kit to fit it they won’t replace it with a new one.

I've never seen snapon refuse to warranty a hand tool, even some my brother had that were made in mexico.... Yes they were, snapon sources their production in the country where they sell them, these tools were acquired from a retired master mechanic from a ford plant in mexico.

I have the same exact ratchet. I also have a Craftsman build identical.