Author Topic: EEVblog #1148 - Mailbag (Read 6879 times)

EEVblog · « **on:** November 20, 2018, 07:32:12 am »

SPOILERS:
Awesome recreations of the Byte front covers: https://bytecovers.com/
Expanded scale 5V voltmeter
Russian multimeter and calculator
Casio Data-Cal 50 calculator
Nintendo 64 N64RGB upgrade board
Delay line
Battery in-product current measurement

maginnovision · « **Reply #1 on:** November 20, 2018, 07:56:35 am »

1148?

Brumby · « **Reply #2 on:** November 20, 2018, 11:05:31 am »

There are some things have have an elegant simplicity about them....

Neilm · « **Reply #3 on:** November 20, 2018, 07:45:11 pm »

That delay line looked as if it was specified in Semens. (pet peeve excercised)

johnlsenchak · « **Reply #4 on:** November 20, 2018, 07:49:36 pm »

Analog delay lines can also be found in CRT color televisions for timing with the Chroma.

Sorry, I don't care for that bench setup . it just dosn't look right to me. Other's here may disagree with me on this one.

hli · « **Reply #5 on:** November 20, 2018, 08:27:04 pm »

The mystery board from China is a "RGB Video DAC for Nintendo 64". The ID on the board (N64RGB12) gave it away: http://etim.net.au/n64rgb/

5n44p · « **Reply #6 on:** November 20, 2018, 11:18:32 pm »

Where can we get the AA current measurement board?

Brumby · « **Reply #7 on:** November 21, 2018, 03:21:21 am »

Do what I did ... use a piece of double sided PCB. Thinner is easier to use, but 1.6mm can work.

HKJ · « **Reply #8 on:** November 21, 2018, 03:49:19 am »

In AA chargers even 0.8mm is often too thick. A very thin solution is to use a piece of Kapton tape with copper tape on both sides, it is possible to solder wires to this.

GeorgeOfTheJungle · « **Reply #9 on:** November 21, 2018, 08:52:49 pm »

From that Byte magazine. Look at the über cool Compucolor 8 tracks cartridge "floppy tape memory", it's got 1 MB!. The Compucolors' screens/graphics were simply gorgeous. Sadly, four or five years later, they were out of bussiness. The TRS-80 is nowhere to be seen, because it didn't exist yet. The Commodore PET 2001 came the next month.

GeorgeOfTheJungle · « **Reply #10 on:** November 21, 2018, 08:57:12 pm »

More:

GeorgeOfTheJungle · « **Reply #11 on:** November 21, 2018, 08:58:19 pm »

The Apple II was new then. Note $600 16k RAM. Apple's been expensive since day one. There's another ad later of 16k RAM for $485, but that's with decoding/glue circuitry and mounted in an S100 expansion board, it's $115 less than Apple's bare chips.

GeorgeOfTheJungle · « **Reply #12 on:** November 21, 2018, 09:02:34 pm »

And the Verbatim 5.25 inch mini floppies are in the What's New section :-) Next to the hp9831A, for $7200, ouch!

GeorgeOfTheJungle · « **Reply #13 on:** November 21, 2018, 09:09:41 pm »

Mass memory of the time, the bubble memory never really came to be.

GeorgeOfTheJungle · « **Reply #14 on:** November 21, 2018, 09:17:08 pm »

More storage

GeorgeOfTheJungle · « **Reply #15 on:** November 21, 2018, 09:17:52 pm »

More...

GeorgeOfTheJungle · « **Reply #16 on:** November 21, 2018, 09:25:10 pm »

A National Semiconductor RPN calculator !

GeorgeOfTheJungle · « **Reply #17 on:** November 21, 2018, 09:25:46 pm »

QRCode, 70's style:

GeorgeOfTheJungle · « **Reply #18 on:** November 21, 2018, 11:00:51 pm »

This is a "personal computer" printer that you could buy then :-)

nemail2 · « **Reply #19 on:** November 22, 2018, 06:19:55 am »

I'm wondering whether Dave would bother to do a (2 minute?) teardown of my self-made lab psu if I send it to him (which has been inspired by his until now released µSupply schematics) or whether he'd just be disgusted by "yet another self-made lab PSU" and just won't stop ranting about it :-D

NivagSwerdna · « **Reply #20 on:** November 22, 2018, 06:22:17 pm »

http://etim.net.au/n64rgb/

errsu · « **Reply #21 on:** November 22, 2018, 11:19:56 pm »

@11:50, that's the list of warranty repair shops of the thing in the USSR. With city, address and phone number. Back in the days you didn't even think about sending it somewhere with the mail or such. :-) You get an idea how large the USSR was.


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Author Topic: EEVblog #1148 - Mailbag (Read 6879 times)

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